jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #include "v8.h" |
| 29 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 30 | #if defined(V8_TARGET_ARCH_MIPS) |
| 31 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 32 | #include "ic-inl.h" |
karlklose@chromium.org | 83a4728 | 2011-05-11 11:54:09 +0000 | [diff] [blame] | 33 | #include "codegen.h" |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 34 | #include "stub-cache.h" |
| 35 | |
| 36 | namespace v8 { |
| 37 | namespace internal { |
| 38 | |
| 39 | #define __ ACCESS_MASM(masm) |
| 40 | |
| 41 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 42 | static void ProbeTable(Isolate* isolate, |
| 43 | MacroAssembler* masm, |
| 44 | Code::Flags flags, |
| 45 | StubCache::Table table, |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 46 | Register receiver, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 47 | Register name, |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 48 | // Number of the cache entry, not scaled. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 49 | Register offset, |
| 50 | Register scratch, |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 51 | Register scratch2, |
| 52 | Register offset_scratch) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 53 | ExternalReference key_offset(isolate->stub_cache()->key_reference(table)); |
| 54 | ExternalReference value_offset(isolate->stub_cache()->value_reference(table)); |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 55 | ExternalReference map_offset(isolate->stub_cache()->map_reference(table)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 56 | |
| 57 | uint32_t key_off_addr = reinterpret_cast<uint32_t>(key_offset.address()); |
| 58 | uint32_t value_off_addr = reinterpret_cast<uint32_t>(value_offset.address()); |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 59 | uint32_t map_off_addr = reinterpret_cast<uint32_t>(map_offset.address()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 60 | |
| 61 | // Check the relative positions of the address fields. |
| 62 | ASSERT(value_off_addr > key_off_addr); |
| 63 | ASSERT((value_off_addr - key_off_addr) % 4 == 0); |
| 64 | ASSERT((value_off_addr - key_off_addr) < (256 * 4)); |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 65 | ASSERT(map_off_addr > key_off_addr); |
| 66 | ASSERT((map_off_addr - key_off_addr) % 4 == 0); |
| 67 | ASSERT((map_off_addr - key_off_addr) < (256 * 4)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 68 | |
| 69 | Label miss; |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 70 | Register base_addr = scratch; |
| 71 | scratch = no_reg; |
| 72 | |
| 73 | // Multiply by 3 because there are 3 fields per entry (name, code, map). |
| 74 | __ sll(offset_scratch, offset, 1); |
| 75 | __ Addu(offset_scratch, offset_scratch, offset); |
| 76 | |
| 77 | // Calculate the base address of the entry. |
| 78 | __ li(base_addr, Operand(key_offset)); |
| 79 | __ sll(at, offset_scratch, kPointerSizeLog2); |
| 80 | __ Addu(base_addr, base_addr, at); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 81 | |
| 82 | // Check that the key in the entry matches the name. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 83 | __ lw(at, MemOperand(base_addr, 0)); |
| 84 | __ Branch(&miss, ne, name, Operand(at)); |
| 85 | |
| 86 | // Check the map matches. |
| 87 | __ lw(at, MemOperand(base_addr, map_off_addr - key_off_addr)); |
| 88 | __ lw(scratch2, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 89 | __ Branch(&miss, ne, at, Operand(scratch2)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 90 | |
| 91 | // Get the code entry from the cache. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 92 | Register code = scratch2; |
| 93 | scratch2 = no_reg; |
| 94 | __ lw(code, MemOperand(base_addr, value_off_addr - key_off_addr)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 95 | |
| 96 | // Check that the flags match what we're looking for. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 97 | Register flags_reg = base_addr; |
| 98 | base_addr = no_reg; |
| 99 | __ lw(flags_reg, FieldMemOperand(code, Code::kFlagsOffset)); |
| 100 | __ And(flags_reg, flags_reg, Operand(~Code::kFlagsNotUsedInLookup)); |
| 101 | __ Branch(&miss, ne, flags_reg, Operand(flags)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 102 | |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 103 | #ifdef DEBUG |
| 104 | if (FLAG_test_secondary_stub_cache && table == StubCache::kPrimary) { |
| 105 | __ jmp(&miss); |
| 106 | } else if (FLAG_test_primary_stub_cache && table == StubCache::kSecondary) { |
| 107 | __ jmp(&miss); |
| 108 | } |
| 109 | #endif |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 110 | |
| 111 | // Jump to the first instruction in the code stub. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 112 | __ Addu(at, code, Operand(Code::kHeaderSize - kHeapObjectTag)); |
| 113 | __ Jump(at); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 114 | |
| 115 | // Miss: fall through. |
| 116 | __ bind(&miss); |
| 117 | } |
| 118 | |
| 119 | |
| 120 | // Helper function used to check that the dictionary doesn't contain |
| 121 | // the property. This function may return false negatives, so miss_label |
| 122 | // must always call a backup property check that is complete. |
| 123 | // This function is safe to call if the receiver has fast properties. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 124 | // Name must be unique and receiver must be a heap object. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 125 | static void GenerateDictionaryNegativeLookup(MacroAssembler* masm, |
| 126 | Label* miss_label, |
| 127 | Register receiver, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 128 | Handle<Name> name, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 129 | Register scratch0, |
| 130 | Register scratch1) { |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 131 | ASSERT(name->IsUniqueName()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 132 | Counters* counters = masm->isolate()->counters(); |
| 133 | __ IncrementCounter(counters->negative_lookups(), 1, scratch0, scratch1); |
| 134 | __ IncrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1); |
| 135 | |
| 136 | Label done; |
| 137 | |
| 138 | const int kInterceptorOrAccessCheckNeededMask = |
| 139 | (1 << Map::kHasNamedInterceptor) | (1 << Map::kIsAccessCheckNeeded); |
| 140 | |
| 141 | // Bail out if the receiver has a named interceptor or requires access checks. |
| 142 | Register map = scratch1; |
| 143 | __ lw(map, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 144 | __ lbu(scratch0, FieldMemOperand(map, Map::kBitFieldOffset)); |
| 145 | __ And(scratch0, scratch0, Operand(kInterceptorOrAccessCheckNeededMask)); |
| 146 | __ Branch(miss_label, ne, scratch0, Operand(zero_reg)); |
| 147 | |
| 148 | // Check that receiver is a JSObject. |
| 149 | __ lbu(scratch0, FieldMemOperand(map, Map::kInstanceTypeOffset)); |
| 150 | __ Branch(miss_label, lt, scratch0, Operand(FIRST_SPEC_OBJECT_TYPE)); |
| 151 | |
| 152 | // Load properties array. |
| 153 | Register properties = scratch0; |
| 154 | __ lw(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 155 | // Check that the properties array is a dictionary. |
| 156 | __ lw(map, FieldMemOperand(properties, HeapObject::kMapOffset)); |
| 157 | Register tmp = properties; |
| 158 | __ LoadRoot(tmp, Heap::kHashTableMapRootIndex); |
| 159 | __ Branch(miss_label, ne, map, Operand(tmp)); |
| 160 | |
| 161 | // Restore the temporarily used register. |
| 162 | __ lw(properties, FieldMemOperand(receiver, JSObject::kPropertiesOffset)); |
| 163 | |
| 164 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 165 | NameDictionaryLookupStub::GenerateNegativeLookup(masm, |
| 166 | miss_label, |
| 167 | &done, |
| 168 | receiver, |
| 169 | properties, |
| 170 | name, |
| 171 | scratch1); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 172 | __ bind(&done); |
| 173 | __ DecrementCounter(counters->negative_lookups_miss(), 1, scratch0, scratch1); |
| 174 | } |
| 175 | |
| 176 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 177 | void StubCache::GenerateProbe(MacroAssembler* masm, |
| 178 | Code::Flags flags, |
| 179 | Register receiver, |
| 180 | Register name, |
| 181 | Register scratch, |
fschneider@chromium.org | e03fb64 | 2010-11-01 12:34:09 +0000 | [diff] [blame] | 182 | Register extra, |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 183 | Register extra2, |
| 184 | Register extra3) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 185 | Isolate* isolate = masm->isolate(); |
| 186 | Label miss; |
| 187 | |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 188 | // Make sure that code is valid. The multiplying code relies on the |
| 189 | // entry size being 12. |
| 190 | ASSERT(sizeof(Entry) == 12); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 191 | |
| 192 | // Make sure the flags does not name a specific type. |
| 193 | ASSERT(Code::ExtractTypeFromFlags(flags) == 0); |
| 194 | |
| 195 | // Make sure that there are no register conflicts. |
| 196 | ASSERT(!scratch.is(receiver)); |
| 197 | ASSERT(!scratch.is(name)); |
| 198 | ASSERT(!extra.is(receiver)); |
| 199 | ASSERT(!extra.is(name)); |
| 200 | ASSERT(!extra.is(scratch)); |
| 201 | ASSERT(!extra2.is(receiver)); |
| 202 | ASSERT(!extra2.is(name)); |
| 203 | ASSERT(!extra2.is(scratch)); |
| 204 | ASSERT(!extra2.is(extra)); |
| 205 | |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 206 | // Check register validity. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 207 | ASSERT(!scratch.is(no_reg)); |
| 208 | ASSERT(!extra.is(no_reg)); |
| 209 | ASSERT(!extra2.is(no_reg)); |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 210 | ASSERT(!extra3.is(no_reg)); |
| 211 | |
| 212 | Counters* counters = masm->isolate()->counters(); |
| 213 | __ IncrementCounter(counters->megamorphic_stub_cache_probes(), 1, |
| 214 | extra2, extra3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 215 | |
| 216 | // Check that the receiver isn't a smi. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 217 | __ JumpIfSmi(receiver, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 218 | |
| 219 | // Get the map of the receiver and compute the hash. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 220 | __ lw(scratch, FieldMemOperand(name, Name::kHashFieldOffset)); |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 221 | __ lw(at, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 222 | __ Addu(scratch, scratch, at); |
| 223 | uint32_t mask = kPrimaryTableSize - 1; |
| 224 | // We shift out the last two bits because they are not part of the hash and |
| 225 | // they are always 01 for maps. |
| 226 | __ srl(scratch, scratch, kHeapObjectTagSize); |
| 227 | __ Xor(scratch, scratch, Operand((flags >> kHeapObjectTagSize) & mask)); |
| 228 | __ And(scratch, scratch, Operand(mask)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 229 | |
| 230 | // Probe the primary table. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 231 | ProbeTable(isolate, |
| 232 | masm, |
| 233 | flags, |
| 234 | kPrimary, |
| 235 | receiver, |
| 236 | name, |
| 237 | scratch, |
| 238 | extra, |
| 239 | extra2, |
| 240 | extra3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 241 | |
| 242 | // Primary miss: Compute hash for secondary probe. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 243 | __ srl(at, name, kHeapObjectTagSize); |
| 244 | __ Subu(scratch, scratch, at); |
| 245 | uint32_t mask2 = kSecondaryTableSize - 1; |
| 246 | __ Addu(scratch, scratch, Operand((flags >> kHeapObjectTagSize) & mask2)); |
| 247 | __ And(scratch, scratch, Operand(mask2)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 248 | |
| 249 | // Probe the secondary table. |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 250 | ProbeTable(isolate, |
| 251 | masm, |
| 252 | flags, |
| 253 | kSecondary, |
| 254 | receiver, |
| 255 | name, |
| 256 | scratch, |
| 257 | extra, |
| 258 | extra2, |
| 259 | extra3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 260 | |
| 261 | // Cache miss: Fall-through and let caller handle the miss by |
| 262 | // entering the runtime system. |
| 263 | __ bind(&miss); |
fschneider@chromium.org | 35814e5 | 2012-03-01 15:43:35 +0000 | [diff] [blame] | 264 | __ IncrementCounter(counters->megamorphic_stub_cache_misses(), 1, |
| 265 | extra2, extra3); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 266 | } |
| 267 | |
| 268 | |
| 269 | void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, |
| 270 | int index, |
| 271 | Register prototype) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 272 | // Load the global or builtins object from the current context. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 273 | __ lw(prototype, |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 274 | MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
| 275 | // Load the native context from the global or builtins object. |
| 276 | __ lw(prototype, |
| 277 | FieldMemOperand(prototype, GlobalObject::kNativeContextOffset)); |
| 278 | // Load the function from the native context. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 279 | __ lw(prototype, MemOperand(prototype, Context::SlotOffset(index))); |
| 280 | // Load the initial map. The global functions all have initial maps. |
| 281 | __ lw(prototype, |
| 282 | FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); |
| 283 | // Load the prototype from the initial map. |
| 284 | __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 285 | } |
| 286 | |
| 287 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 288 | void StubCompiler::GenerateDirectLoadGlobalFunctionPrototype( |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 289 | MacroAssembler* masm, |
| 290 | int index, |
| 291 | Register prototype, |
| 292 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 293 | Isolate* isolate = masm->isolate(); |
| 294 | // Check we're still in the same context. |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 295 | __ lw(prototype, |
| 296 | MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 297 | ASSERT(!prototype.is(at)); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 298 | __ li(at, isolate->global_object()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 299 | __ Branch(miss, ne, prototype, Operand(at)); |
| 300 | // Get the global function with the given index. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 301 | Handle<JSFunction> function( |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 302 | JSFunction::cast(isolate->native_context()->get(index))); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 303 | // Load its initial map. The global functions all have initial maps. |
| 304 | __ li(prototype, Handle<Map>(function->initial_map())); |
| 305 | // Load the prototype from the initial map. |
| 306 | __ lw(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 307 | } |
| 308 | |
| 309 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 310 | void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm, |
| 311 | Register dst, |
| 312 | Register src, |
| 313 | bool inobject, |
| 314 | int index, |
| 315 | Representation representation) { |
| 316 | ASSERT(!FLAG_track_double_fields || !representation.IsDouble()); |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 317 | int offset = index * kPointerSize; |
| 318 | if (!inobject) { |
| 319 | // Calculate the offset into the properties array. |
| 320 | offset = offset + FixedArray::kHeaderSize; |
| 321 | __ lw(dst, FieldMemOperand(src, JSObject::kPropertiesOffset)); |
| 322 | src = dst; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 323 | } |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 324 | __ lw(dst, FieldMemOperand(src, offset)); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 325 | } |
| 326 | |
| 327 | |
| 328 | void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm, |
| 329 | Register receiver, |
| 330 | Register scratch, |
| 331 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 332 | // Check that the receiver isn't a smi. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 333 | __ JumpIfSmi(receiver, miss_label); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 334 | |
| 335 | // Check that the object is a JS array. |
| 336 | __ GetObjectType(receiver, scratch, scratch); |
| 337 | __ Branch(miss_label, ne, scratch, Operand(JS_ARRAY_TYPE)); |
| 338 | |
| 339 | // Load length directly from the JS array. |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 340 | __ Ret(USE_DELAY_SLOT); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 341 | __ lw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 342 | } |
| 343 | |
| 344 | |
| 345 | // Generate code to check if an object is a string. If the object is a |
| 346 | // heap object, its map's instance type is left in the scratch1 register. |
| 347 | // If this is not needed, scratch1 and scratch2 may be the same register. |
| 348 | static void GenerateStringCheck(MacroAssembler* masm, |
| 349 | Register receiver, |
| 350 | Register scratch1, |
| 351 | Register scratch2, |
| 352 | Label* smi, |
| 353 | Label* non_string_object) { |
| 354 | // Check that the receiver isn't a smi. |
| 355 | __ JumpIfSmi(receiver, smi, t0); |
| 356 | |
| 357 | // Check that the object is a string. |
| 358 | __ lw(scratch1, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 359 | __ lbu(scratch1, FieldMemOperand(scratch1, Map::kInstanceTypeOffset)); |
| 360 | __ And(scratch2, scratch1, Operand(kIsNotStringMask)); |
| 361 | // The cast is to resolve the overload for the argument of 0x0. |
| 362 | __ Branch(non_string_object, |
| 363 | ne, |
| 364 | scratch2, |
| 365 | Operand(static_cast<int32_t>(kStringTag))); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 366 | } |
| 367 | |
| 368 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 369 | // Generate code to load the length from a string object and return the length. |
| 370 | // If the receiver object is not a string or a wrapped string object the |
| 371 | // execution continues at the miss label. The register containing the |
| 372 | // receiver is potentially clobbered. |
| 373 | void StubCompiler::GenerateLoadStringLength(MacroAssembler* masm, |
| 374 | Register receiver, |
| 375 | Register scratch1, |
| 376 | Register scratch2, |
| 377 | Label* miss, |
| 378 | bool support_wrappers) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 379 | Label check_wrapper; |
| 380 | |
| 381 | // Check if the object is a string leaving the instance type in the |
| 382 | // scratch1 register. |
| 383 | GenerateStringCheck(masm, receiver, scratch1, scratch2, miss, |
| 384 | support_wrappers ? &check_wrapper : miss); |
| 385 | |
| 386 | // Load length directly from the string. |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 387 | __ Ret(USE_DELAY_SLOT); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 388 | __ lw(v0, FieldMemOperand(receiver, String::kLengthOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 389 | |
| 390 | if (support_wrappers) { |
| 391 | // Check if the object is a JSValue wrapper. |
| 392 | __ bind(&check_wrapper); |
| 393 | __ Branch(miss, ne, scratch1, Operand(JS_VALUE_TYPE)); |
| 394 | |
| 395 | // Unwrap the value and check if the wrapped value is a string. |
| 396 | __ lw(scratch1, FieldMemOperand(receiver, JSValue::kValueOffset)); |
| 397 | GenerateStringCheck(masm, scratch1, scratch2, scratch2, miss, miss); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 398 | __ Ret(USE_DELAY_SLOT); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 399 | __ lw(v0, FieldMemOperand(scratch1, String::kLengthOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 400 | } |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 401 | } |
| 402 | |
| 403 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 404 | void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm, |
| 405 | Register receiver, |
| 406 | Register scratch1, |
| 407 | Register scratch2, |
| 408 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 409 | __ TryGetFunctionPrototype(receiver, scratch1, scratch2, miss_label); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 410 | __ Ret(USE_DELAY_SLOT); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 411 | __ mov(v0, scratch1); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 412 | } |
| 413 | |
| 414 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 415 | // Generate code to check that a global property cell is empty. Create |
| 416 | // the property cell at compilation time if no cell exists for the |
| 417 | // property. |
| 418 | static void GenerateCheckPropertyCell(MacroAssembler* masm, |
| 419 | Handle<GlobalObject> global, |
| 420 | Handle<Name> name, |
| 421 | Register scratch, |
| 422 | Label* miss) { |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 423 | Handle<Cell> cell = GlobalObject::EnsurePropertyCell(global, name); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 424 | ASSERT(cell->value()->IsTheHole()); |
| 425 | __ li(scratch, Operand(cell)); |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 426 | __ lw(scratch, FieldMemOperand(scratch, Cell::kValueOffset)); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 427 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
| 428 | __ Branch(miss, ne, scratch, Operand(at)); |
| 429 | } |
| 430 | |
| 431 | |
| 432 | // Generate StoreTransition code, value is passed in a0 register. |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 433 | // After executing generated code, the receiver_reg and name_reg |
| 434 | // may be clobbered. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 435 | void StubCompiler::GenerateStoreTransition(MacroAssembler* masm, |
| 436 | Handle<JSObject> object, |
| 437 | LookupResult* lookup, |
| 438 | Handle<Map> transition, |
| 439 | Handle<Name> name, |
| 440 | Register receiver_reg, |
| 441 | Register name_reg, |
| 442 | Register value_reg, |
| 443 | Register scratch1, |
| 444 | Register scratch2, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 445 | Register scratch3, |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 446 | Label* miss_label, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 447 | Label* miss_restore_name, |
| 448 | Label* slow) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 449 | // a0 : value. |
| 450 | Label exit; |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 451 | |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 452 | // Check that the map of the object hasn't changed. |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 453 | __ CheckMap(receiver_reg, scratch1, Handle<Map>(object->map()), miss_label, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 454 | DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 455 | |
| 456 | // Perform global security token check if needed. |
| 457 | if (object->IsJSGlobalProxy()) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 458 | __ CheckAccessGlobalProxy(receiver_reg, scratch1, miss_label); |
| 459 | } |
| 460 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 461 | int descriptor = transition->LastAdded(); |
| 462 | DescriptorArray* descriptors = transition->instance_descriptors(); |
| 463 | PropertyDetails details = descriptors->GetDetails(descriptor); |
| 464 | Representation representation = details.representation(); |
| 465 | ASSERT(!representation.IsNone()); |
| 466 | |
| 467 | // Ensure no transitions to deprecated maps are followed. |
| 468 | __ CheckMapDeprecated(transition, scratch1, miss_label); |
| 469 | |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 470 | // Check that we are allowed to write this. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 471 | if (object->GetPrototype()->IsJSObject()) { |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 472 | JSObject* holder; |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 473 | // holder == object indicates that no property was found. |
| 474 | if (lookup->holder() != *object) { |
| 475 | holder = lookup->holder(); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 476 | } else { |
| 477 | // Find the top object. |
| 478 | holder = *object; |
| 479 | do { |
| 480 | holder = JSObject::cast(holder->GetPrototype()); |
| 481 | } while (holder->GetPrototype()->IsJSObject()); |
| 482 | } |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 483 | Register holder_reg = CheckPrototypes( |
| 484 | object, receiver_reg, Handle<JSObject>(holder), name_reg, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 485 | scratch1, scratch2, name, miss_restore_name, SKIP_RECEIVER); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 486 | // If no property was found, and the holder (the last object in the |
| 487 | // prototype chain) is in slow mode, we need to do a negative lookup on the |
| 488 | // holder. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 489 | if (lookup->holder() == *object) { |
| 490 | if (holder->IsJSGlobalObject()) { |
| 491 | GenerateCheckPropertyCell( |
| 492 | masm, |
| 493 | Handle<GlobalObject>(GlobalObject::cast(holder)), |
| 494 | name, |
| 495 | scratch1, |
| 496 | miss_restore_name); |
| 497 | } else if (!holder->HasFastProperties() && !holder->IsJSGlobalProxy()) { |
| 498 | GenerateDictionaryNegativeLookup( |
| 499 | masm, miss_restore_name, holder_reg, name, scratch1, scratch2); |
| 500 | } |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 501 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 502 | } |
| 503 | |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 504 | Register storage_reg = name_reg; |
| 505 | |
| 506 | if (FLAG_track_fields && representation.IsSmi()) { |
| 507 | __ JumpIfNotSmi(value_reg, miss_restore_name); |
ulan@chromium.org | 906e2fb | 2013-05-14 08:14:38 +0000 | [diff] [blame] | 508 | } else if (FLAG_track_heap_object_fields && representation.IsHeapObject()) { |
| 509 | __ JumpIfSmi(value_reg, miss_restore_name); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 510 | } else if (FLAG_track_double_fields && representation.IsDouble()) { |
| 511 | Label do_store, heap_number; |
| 512 | __ LoadRoot(scratch3, Heap::kHeapNumberMapRootIndex); |
| 513 | __ AllocateHeapNumber(storage_reg, scratch1, scratch2, scratch3, slow); |
| 514 | |
| 515 | __ JumpIfNotSmi(value_reg, &heap_number); |
| 516 | __ SmiUntag(scratch1, value_reg); |
| 517 | __ mtc1(scratch1, f6); |
| 518 | __ cvt_d_w(f4, f6); |
| 519 | __ jmp(&do_store); |
| 520 | |
| 521 | __ bind(&heap_number); |
| 522 | __ CheckMap(value_reg, scratch1, Heap::kHeapNumberMapRootIndex, |
| 523 | miss_restore_name, DONT_DO_SMI_CHECK); |
| 524 | __ ldc1(f4, FieldMemOperand(value_reg, HeapNumber::kValueOffset)); |
| 525 | |
| 526 | __ bind(&do_store); |
| 527 | __ sdc1(f4, FieldMemOperand(storage_reg, HeapNumber::kValueOffset)); |
| 528 | } |
| 529 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 530 | // Stub never generated for non-global objects that require access |
| 531 | // checks. |
| 532 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
| 533 | |
| 534 | // Perform map transition for the receiver if necessary. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 535 | if (object->map()->unused_property_fields() == 0) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 536 | // The properties must be extended before we can store the value. |
| 537 | // We jump to a runtime call that extends the properties array. |
| 538 | __ push(receiver_reg); |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 539 | __ li(a2, Operand(transition)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 540 | __ Push(a2, a0); |
| 541 | __ TailCallExternalReference( |
| 542 | ExternalReference(IC_Utility(IC::kSharedStoreIC_ExtendStorage), |
| 543 | masm->isolate()), |
| 544 | 3, 1); |
| 545 | return; |
| 546 | } |
| 547 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 548 | // Update the map of the object. |
| 549 | __ li(scratch1, Operand(transition)); |
| 550 | __ sw(scratch1, FieldMemOperand(receiver_reg, HeapObject::kMapOffset)); |
verwaest@chromium.org | 3714139 | 2012-05-31 13:27:02 +0000 | [diff] [blame] | 551 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 552 | // Update the write barrier for the map field and pass the now unused |
| 553 | // name_reg as scratch register. |
| 554 | __ RecordWriteField(receiver_reg, |
| 555 | HeapObject::kMapOffset, |
| 556 | scratch1, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 557 | scratch2, |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 558 | kRAHasNotBeenSaved, |
| 559 | kDontSaveFPRegs, |
| 560 | OMIT_REMEMBERED_SET, |
| 561 | OMIT_SMI_CHECK); |
| 562 | |
| 563 | int index = transition->instance_descriptors()->GetFieldIndex( |
| 564 | transition->LastAdded()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 565 | |
| 566 | // Adjust for the number of properties stored in the object. Even in the |
| 567 | // face of a transition we can use the old map here because the size of the |
| 568 | // object and the number of in-object properties is not going to change. |
| 569 | index -= object->map()->inobject_properties(); |
| 570 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 571 | // TODO(verwaest): Share this code as a code stub. |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 572 | SmiCheck smi_check = representation.IsTagged() |
| 573 | ? INLINE_SMI_CHECK : OMIT_SMI_CHECK; |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 574 | if (index < 0) { |
| 575 | // Set the property straight into the object. |
| 576 | int offset = object->map()->instance_size() + (index * kPointerSize); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 577 | if (FLAG_track_double_fields && representation.IsDouble()) { |
| 578 | __ sw(storage_reg, FieldMemOperand(receiver_reg, offset)); |
| 579 | } else { |
| 580 | __ sw(value_reg, FieldMemOperand(receiver_reg, offset)); |
| 581 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 582 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 583 | if (!FLAG_track_fields || !representation.IsSmi()) { |
| 584 | // Skip updating write barrier if storing a smi. |
| 585 | __ JumpIfSmi(value_reg, &exit); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 586 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 587 | // Update the write barrier for the array address. |
| 588 | // Pass the now unused name_reg as a scratch register. |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 589 | if (!FLAG_track_double_fields || !representation.IsDouble()) { |
| 590 | __ mov(name_reg, value_reg); |
| 591 | } else { |
| 592 | ASSERT(storage_reg.is(name_reg)); |
| 593 | } |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 594 | __ RecordWriteField(receiver_reg, |
| 595 | offset, |
| 596 | name_reg, |
| 597 | scratch1, |
| 598 | kRAHasNotBeenSaved, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 599 | kDontSaveFPRegs, |
| 600 | EMIT_REMEMBERED_SET, |
| 601 | smi_check); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 602 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 603 | } else { |
| 604 | // Write to the properties array. |
| 605 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
| 606 | // Get the properties array |
| 607 | __ lw(scratch1, |
| 608 | FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 609 | if (FLAG_track_double_fields && representation.IsDouble()) { |
| 610 | __ sw(storage_reg, FieldMemOperand(scratch1, offset)); |
| 611 | } else { |
| 612 | __ sw(value_reg, FieldMemOperand(scratch1, offset)); |
| 613 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 614 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 615 | if (!FLAG_track_fields || !representation.IsSmi()) { |
| 616 | // Skip updating write barrier if storing a smi. |
| 617 | __ JumpIfSmi(value_reg, &exit); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 618 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 619 | // Update the write barrier for the array address. |
| 620 | // Ok to clobber receiver_reg and name_reg, since we return. |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 621 | if (!FLAG_track_double_fields || !representation.IsDouble()) { |
| 622 | __ mov(name_reg, value_reg); |
| 623 | } else { |
| 624 | ASSERT(storage_reg.is(name_reg)); |
| 625 | } |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 626 | __ RecordWriteField(scratch1, |
| 627 | offset, |
| 628 | name_reg, |
| 629 | receiver_reg, |
| 630 | kRAHasNotBeenSaved, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 631 | kDontSaveFPRegs, |
| 632 | EMIT_REMEMBERED_SET, |
| 633 | smi_check); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 634 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 635 | } |
| 636 | |
| 637 | // Return the value (register v0). |
| 638 | ASSERT(value_reg.is(a0)); |
| 639 | __ bind(&exit); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 640 | __ Ret(USE_DELAY_SLOT); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 641 | __ mov(v0, a0); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 642 | } |
| 643 | |
| 644 | |
| 645 | // Generate StoreField code, value is passed in a0 register. |
| 646 | // When leaving generated code after success, the receiver_reg and name_reg |
| 647 | // may be clobbered. Upon branch to miss_label, the receiver and name |
| 648 | // registers have their original values. |
| 649 | void StubCompiler::GenerateStoreField(MacroAssembler* masm, |
| 650 | Handle<JSObject> object, |
| 651 | LookupResult* lookup, |
| 652 | Register receiver_reg, |
| 653 | Register name_reg, |
| 654 | Register value_reg, |
| 655 | Register scratch1, |
| 656 | Register scratch2, |
| 657 | Label* miss_label) { |
| 658 | // a0 : value |
| 659 | Label exit; |
| 660 | |
| 661 | // Check that the map of the object hasn't changed. |
| 662 | __ CheckMap(receiver_reg, scratch1, Handle<Map>(object->map()), miss_label, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 663 | DO_SMI_CHECK); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 664 | |
| 665 | // Perform global security token check if needed. |
| 666 | if (object->IsJSGlobalProxy()) { |
| 667 | __ CheckAccessGlobalProxy(receiver_reg, scratch1, miss_label); |
| 668 | } |
| 669 | |
| 670 | // Stub never generated for non-global objects that require access |
| 671 | // checks. |
| 672 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
| 673 | |
| 674 | int index = lookup->GetFieldIndex().field_index(); |
| 675 | |
| 676 | // Adjust for the number of properties stored in the object. Even in the |
| 677 | // face of a transition we can use the old map here because the size of the |
| 678 | // object and the number of in-object properties is not going to change. |
| 679 | index -= object->map()->inobject_properties(); |
| 680 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 681 | Representation representation = lookup->representation(); |
| 682 | ASSERT(!representation.IsNone()); |
| 683 | if (FLAG_track_fields && representation.IsSmi()) { |
| 684 | __ JumpIfNotSmi(value_reg, miss_label); |
ulan@chromium.org | 906e2fb | 2013-05-14 08:14:38 +0000 | [diff] [blame] | 685 | } else if (FLAG_track_heap_object_fields && representation.IsHeapObject()) { |
| 686 | __ JumpIfSmi(value_reg, miss_label); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 687 | } else if (FLAG_track_double_fields && representation.IsDouble()) { |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 688 | // Load the double storage. |
| 689 | if (index < 0) { |
| 690 | int offset = object->map()->instance_size() + (index * kPointerSize); |
| 691 | __ lw(scratch1, FieldMemOperand(receiver_reg, offset)); |
| 692 | } else { |
| 693 | __ lw(scratch1, |
| 694 | FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); |
| 695 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
| 696 | __ lw(scratch1, FieldMemOperand(scratch1, offset)); |
| 697 | } |
| 698 | |
| 699 | // Store the value into the storage. |
| 700 | Label do_store, heap_number; |
| 701 | __ JumpIfNotSmi(value_reg, &heap_number); |
| 702 | __ SmiUntag(scratch2, value_reg); |
| 703 | __ mtc1(scratch2, f6); |
| 704 | __ cvt_d_w(f4, f6); |
| 705 | __ jmp(&do_store); |
| 706 | |
| 707 | __ bind(&heap_number); |
| 708 | __ CheckMap(value_reg, scratch2, Heap::kHeapNumberMapRootIndex, |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 709 | miss_label, DONT_DO_SMI_CHECK); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 710 | __ ldc1(f4, FieldMemOperand(value_reg, HeapNumber::kValueOffset)); |
| 711 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 712 | __ bind(&do_store); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 713 | __ sdc1(f4, FieldMemOperand(scratch1, HeapNumber::kValueOffset)); |
| 714 | // Return the value (register v0). |
| 715 | ASSERT(value_reg.is(a0)); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 716 | __ Ret(USE_DELAY_SLOT); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 717 | __ mov(v0, a0); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 718 | return; |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 719 | } |
| 720 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 721 | // TODO(verwaest): Share this code as a code stub. |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 722 | SmiCheck smi_check = representation.IsTagged() |
| 723 | ? INLINE_SMI_CHECK : OMIT_SMI_CHECK; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 724 | if (index < 0) { |
| 725 | // Set the property straight into the object. |
| 726 | int offset = object->map()->instance_size() + (index * kPointerSize); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 727 | __ sw(value_reg, FieldMemOperand(receiver_reg, offset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 728 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 729 | if (!FLAG_track_fields || !representation.IsSmi()) { |
| 730 | // Skip updating write barrier if storing a smi. |
| 731 | __ JumpIfSmi(value_reg, &exit); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 732 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 733 | // Update the write barrier for the array address. |
| 734 | // Pass the now unused name_reg as a scratch register. |
| 735 | __ mov(name_reg, value_reg); |
| 736 | __ RecordWriteField(receiver_reg, |
| 737 | offset, |
| 738 | name_reg, |
| 739 | scratch1, |
| 740 | kRAHasNotBeenSaved, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 741 | kDontSaveFPRegs, |
| 742 | EMIT_REMEMBERED_SET, |
| 743 | smi_check); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 744 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 745 | } else { |
| 746 | // Write to the properties array. |
| 747 | int offset = index * kPointerSize + FixedArray::kHeaderSize; |
| 748 | // Get the properties array. |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 749 | __ lw(scratch1, |
| 750 | FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 751 | __ sw(value_reg, FieldMemOperand(scratch1, offset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 752 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 753 | if (!FLAG_track_fields || !representation.IsSmi()) { |
| 754 | // Skip updating write barrier if storing a smi. |
| 755 | __ JumpIfSmi(value_reg, &exit); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 756 | |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 757 | // Update the write barrier for the array address. |
| 758 | // Ok to clobber receiver_reg and name_reg, since we return. |
| 759 | __ mov(name_reg, value_reg); |
| 760 | __ RecordWriteField(scratch1, |
| 761 | offset, |
| 762 | name_reg, |
| 763 | receiver_reg, |
| 764 | kRAHasNotBeenSaved, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 765 | kDontSaveFPRegs, |
| 766 | EMIT_REMEMBERED_SET, |
| 767 | smi_check); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 768 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 769 | } |
| 770 | |
| 771 | // Return the value (register v0). |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 772 | ASSERT(value_reg.is(a0)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 773 | __ bind(&exit); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 774 | __ Ret(USE_DELAY_SLOT); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 775 | __ mov(v0, a0); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 776 | } |
| 777 | |
| 778 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 779 | void BaseStoreStubCompiler::GenerateRestoreName(MacroAssembler* masm, |
| 780 | Label* label, |
| 781 | Handle<Name> name) { |
| 782 | if (!label->is_unused()) { |
| 783 | __ bind(label); |
| 784 | __ li(this->name(), Operand(name)); |
| 785 | } |
mstarzinger@chromium.org | 068ea0a | 2013-01-30 09:39:44 +0000 | [diff] [blame] | 786 | } |
| 787 | |
| 788 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 789 | static void GenerateCallFunction(MacroAssembler* masm, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 790 | Handle<Object> object, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 791 | const ParameterCount& arguments, |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 792 | Label* miss, |
| 793 | Code::ExtraICState extra_ic_state) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 794 | // ----------- S t a t e ------------- |
| 795 | // -- a0: receiver |
| 796 | // -- a1: function to call |
| 797 | // ----------------------------------- |
| 798 | // Check that the function really is a function. |
| 799 | __ JumpIfSmi(a1, miss); |
| 800 | __ GetObjectType(a1, a3, a3); |
| 801 | __ Branch(miss, ne, a3, Operand(JS_FUNCTION_TYPE)); |
| 802 | |
| 803 | // Patch the receiver on the stack with the global proxy if |
| 804 | // necessary. |
| 805 | if (object->IsGlobalObject()) { |
| 806 | __ lw(a3, FieldMemOperand(a0, GlobalObject::kGlobalReceiverOffset)); |
| 807 | __ sw(a3, MemOperand(sp, arguments.immediate() * kPointerSize)); |
| 808 | } |
| 809 | |
| 810 | // Invoke the function. |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 811 | CallKind call_kind = CallICBase::Contextual::decode(extra_ic_state) |
| 812 | ? CALL_AS_FUNCTION |
| 813 | : CALL_AS_METHOD; |
| 814 | __ InvokeFunction(a1, arguments, JUMP_FUNCTION, NullCallWrapper(), call_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 815 | } |
| 816 | |
| 817 | |
| 818 | static void PushInterceptorArguments(MacroAssembler* masm, |
| 819 | Register receiver, |
| 820 | Register holder, |
| 821 | Register name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 822 | Handle<JSObject> holder_obj) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 823 | __ push(name); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 824 | Handle<InterceptorInfo> interceptor(holder_obj->GetNamedInterceptor()); |
| 825 | ASSERT(!masm->isolate()->heap()->InNewSpace(*interceptor)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 826 | Register scratch = name; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 827 | __ li(scratch, Operand(interceptor)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 828 | __ Push(scratch, receiver, holder); |
| 829 | __ lw(scratch, FieldMemOperand(scratch, InterceptorInfo::kDataOffset)); |
| 830 | __ push(scratch); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 831 | __ li(scratch, Operand(ExternalReference::isolate_address(masm->isolate()))); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 832 | __ push(scratch); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 833 | } |
| 834 | |
| 835 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 836 | static void CompileCallLoadPropertyWithInterceptor( |
| 837 | MacroAssembler* masm, |
| 838 | Register receiver, |
| 839 | Register holder, |
| 840 | Register name, |
| 841 | Handle<JSObject> holder_obj) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 842 | PushInterceptorArguments(masm, receiver, holder, name, holder_obj); |
| 843 | |
| 844 | ExternalReference ref = |
| 845 | ExternalReference(IC_Utility(IC::kLoadPropertyWithInterceptorOnly), |
| 846 | masm->isolate()); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 847 | __ PrepareCEntryArgs(6); |
ulan@chromium.org | 6ff6514 | 2012-03-21 09:52:17 +0000 | [diff] [blame] | 848 | __ PrepareCEntryFunction(ref); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 849 | |
| 850 | CEntryStub stub(1); |
| 851 | __ CallStub(&stub); |
| 852 | } |
| 853 | |
| 854 | |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 855 | static const int kFastApiCallArguments = FunctionCallbackArguments::kArgsLength; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 856 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 857 | // Reserves space for the extra arguments to API function in the |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 858 | // caller's frame. |
| 859 | // |
| 860 | // These arguments are set by CheckPrototypes and GenerateFastApiDirectCall. |
| 861 | static void ReserveSpaceForFastApiCall(MacroAssembler* masm, |
| 862 | Register scratch) { |
| 863 | ASSERT(Smi::FromInt(0) == 0); |
| 864 | for (int i = 0; i < kFastApiCallArguments; i++) { |
| 865 | __ push(zero_reg); |
| 866 | } |
| 867 | } |
| 868 | |
| 869 | |
| 870 | // Undoes the effects of ReserveSpaceForFastApiCall. |
| 871 | static void FreeSpaceForFastApiCall(MacroAssembler* masm) { |
| 872 | __ Drop(kFastApiCallArguments); |
| 873 | } |
| 874 | |
| 875 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 876 | static void GenerateFastApiDirectCall(MacroAssembler* masm, |
| 877 | const CallOptimization& optimization, |
| 878 | int argc) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 879 | // ----------- S t a t e ------------- |
| 880 | // -- sp[0] : holder (set by CheckPrototypes) |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 881 | // -- sp[4] : callee JS function |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 882 | // -- sp[8] : call data |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 883 | // -- sp[12] : isolate |
palfia@homejinni.com | 79d0bf7 | 2013-06-10 19:35:04 +0000 | [diff] [blame] | 884 | // -- sp[16] : ReturnValue default value |
| 885 | // -- sp[20] : ReturnValue |
| 886 | // -- sp[24] : last JS argument |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 887 | // -- ... |
palfia@homejinni.com | 79d0bf7 | 2013-06-10 19:35:04 +0000 | [diff] [blame] | 888 | // -- sp[(argc + 5) * 4] : first JS argument |
| 889 | // -- sp[(argc + 6) * 4] : receiver |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 890 | // ----------------------------------- |
| 891 | // Get the function and setup the context. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 892 | Handle<JSFunction> function = optimization.constant_function(); |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 893 | __ LoadHeapObject(t1, function); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 894 | __ lw(cp, FieldMemOperand(t1, JSFunction::kContextOffset)); |
| 895 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 896 | // Pass the additional arguments. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 897 | Handle<CallHandlerInfo> api_call_info = optimization.api_call_info(); |
ulan@chromium.org | 09d7ab5 | 2013-02-25 15:50:35 +0000 | [diff] [blame] | 898 | Handle<Object> call_data(api_call_info->data(), masm->isolate()); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 899 | if (masm->isolate()->heap()->InNewSpace(*call_data)) { |
| 900 | __ li(a0, api_call_info); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 901 | __ lw(t2, FieldMemOperand(a0, CallHandlerInfo::kDataOffset)); |
| 902 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 903 | __ li(t2, call_data); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 904 | } |
| 905 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 906 | __ li(t3, Operand(ExternalReference::isolate_address(masm->isolate()))); |
palfia@homejinni.com | 79d0bf7 | 2013-06-10 19:35:04 +0000 | [diff] [blame] | 907 | // Store JS function, call data, isolate ReturnValue default and ReturnValue. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 908 | __ sw(t1, MemOperand(sp, 1 * kPointerSize)); |
| 909 | __ sw(t2, MemOperand(sp, 2 * kPointerSize)); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 910 | __ sw(t3, MemOperand(sp, 3 * kPointerSize)); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 911 | __ LoadRoot(t1, Heap::kUndefinedValueRootIndex); |
| 912 | __ sw(t1, MemOperand(sp, 4 * kPointerSize)); |
palfia@homejinni.com | 79d0bf7 | 2013-06-10 19:35:04 +0000 | [diff] [blame] | 913 | __ sw(t1, MemOperand(sp, 5 * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 914 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 915 | // Prepare arguments. |
palfia@homejinni.com | 79d0bf7 | 2013-06-10 19:35:04 +0000 | [diff] [blame] | 916 | __ Addu(a2, sp, Operand(5 * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 917 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 918 | // Allocate the v8::Arguments structure in the arguments' space since |
| 919 | // it's not controlled by GC. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 920 | const int kApiStackSpace = 4; |
| 921 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 922 | FrameScope frame_scope(masm, StackFrame::MANUAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 923 | __ EnterExitFrame(false, kApiStackSpace); |
| 924 | |
| 925 | // NOTE: the O32 abi requires a0 to hold a special pointer when returning a |
| 926 | // struct from the function (which is currently the case). This means we pass |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 927 | // the first argument in a1 instead of a0, if returns_handle is true. |
| 928 | // CallApiFunctionAndReturn will set up a0. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 929 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 930 | Address function_address = v8::ToCData<Address>(api_call_info->callback()); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 931 | bool returns_handle = |
| 932 | !CallbackTable::ReturnsVoid(masm->isolate(), function_address); |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 933 | |
| 934 | Register first_arg = returns_handle ? a1 : a0; |
| 935 | |
| 936 | // first_arg = v8::Arguments& |
| 937 | // Arguments is built at sp + 1 (sp is a reserved spot for ra). |
| 938 | __ Addu(first_arg, sp, kPointerSize); |
| 939 | |
| 940 | // v8::Arguments::implicit_args_ |
| 941 | __ sw(a2, MemOperand(first_arg, 0 * kPointerSize)); |
| 942 | // v8::Arguments::values_ |
| 943 | __ Addu(t0, a2, Operand(argc * kPointerSize)); |
| 944 | __ sw(t0, MemOperand(first_arg, 1 * kPointerSize)); |
| 945 | // v8::Arguments::length_ = argc |
| 946 | __ li(t0, Operand(argc)); |
| 947 | __ sw(t0, MemOperand(first_arg, 2 * kPointerSize)); |
| 948 | // v8::Arguments::is_construct_call = 0 |
| 949 | __ sw(zero_reg, MemOperand(first_arg, 3 * kPointerSize)); |
| 950 | |
| 951 | const int kStackUnwindSpace = argc + kFastApiCallArguments + 1; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 952 | ApiFunction fun(function_address); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 953 | ExternalReference::Type type = |
| 954 | returns_handle ? |
| 955 | ExternalReference::DIRECT_API_CALL : |
| 956 | ExternalReference::DIRECT_API_CALL_NEW; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 957 | ExternalReference ref = |
| 958 | ExternalReference(&fun, |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 959 | type, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 960 | masm->isolate()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 961 | AllowExternalCallThatCantCauseGC scope(masm); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 962 | __ CallApiFunctionAndReturn(ref, |
| 963 | kStackUnwindSpace, |
| 964 | returns_handle, |
| 965 | kFastApiCallArguments + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 966 | } |
| 967 | |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 968 | class CallInterceptorCompiler BASE_EMBEDDED { |
| 969 | public: |
| 970 | CallInterceptorCompiler(StubCompiler* stub_compiler, |
| 971 | const ParameterCount& arguments, |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 972 | Register name, |
| 973 | Code::ExtraICState extra_ic_state) |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 974 | : stub_compiler_(stub_compiler), |
| 975 | arguments_(arguments), |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 976 | name_(name), |
| 977 | extra_ic_state_(extra_ic_state) {} |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 978 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 979 | void Compile(MacroAssembler* masm, |
| 980 | Handle<JSObject> object, |
| 981 | Handle<JSObject> holder, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 982 | Handle<Name> name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 983 | LookupResult* lookup, |
| 984 | Register receiver, |
| 985 | Register scratch1, |
| 986 | Register scratch2, |
| 987 | Register scratch3, |
| 988 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 989 | ASSERT(holder->HasNamedInterceptor()); |
| 990 | ASSERT(!holder->GetNamedInterceptor()->getter()->IsUndefined()); |
| 991 | |
| 992 | // Check that the receiver isn't a smi. |
| 993 | __ JumpIfSmi(receiver, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 994 | CallOptimization optimization(lookup); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 995 | if (optimization.is_constant_call()) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 996 | CompileCacheable(masm, object, receiver, scratch1, scratch2, scratch3, |
| 997 | holder, lookup, name, optimization, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 998 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 999 | CompileRegular(masm, object, receiver, scratch1, scratch2, scratch3, |
| 1000 | name, holder, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1001 | } |
| 1002 | } |
| 1003 | |
| 1004 | private: |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1005 | void CompileCacheable(MacroAssembler* masm, |
| 1006 | Handle<JSObject> object, |
| 1007 | Register receiver, |
| 1008 | Register scratch1, |
| 1009 | Register scratch2, |
| 1010 | Register scratch3, |
| 1011 | Handle<JSObject> interceptor_holder, |
| 1012 | LookupResult* lookup, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1013 | Handle<Name> name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1014 | const CallOptimization& optimization, |
| 1015 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1016 | ASSERT(optimization.is_constant_call()); |
| 1017 | ASSERT(!lookup->holder()->IsGlobalObject()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1018 | Counters* counters = masm->isolate()->counters(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1019 | int depth1 = kInvalidProtoDepth; |
| 1020 | int depth2 = kInvalidProtoDepth; |
| 1021 | bool can_do_fast_api_call = false; |
| 1022 | if (optimization.is_simple_api_call() && |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1023 | !lookup->holder()->IsGlobalObject()) { |
| 1024 | depth1 = optimization.GetPrototypeDepthOfExpectedType( |
| 1025 | object, interceptor_holder); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1026 | if (depth1 == kInvalidProtoDepth) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1027 | depth2 = optimization.GetPrototypeDepthOfExpectedType( |
| 1028 | interceptor_holder, Handle<JSObject>(lookup->holder())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1029 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1030 | can_do_fast_api_call = |
| 1031 | depth1 != kInvalidProtoDepth || depth2 != kInvalidProtoDepth; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1032 | } |
| 1033 | |
| 1034 | __ IncrementCounter(counters->call_const_interceptor(), 1, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1035 | scratch1, scratch2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1036 | |
| 1037 | if (can_do_fast_api_call) { |
| 1038 | __ IncrementCounter(counters->call_const_interceptor_fast_api(), 1, |
| 1039 | scratch1, scratch2); |
| 1040 | ReserveSpaceForFastApiCall(masm, scratch1); |
| 1041 | } |
| 1042 | |
| 1043 | // Check that the maps from receiver to interceptor's holder |
| 1044 | // haven't changed and thus we can invoke interceptor. |
| 1045 | Label miss_cleanup; |
| 1046 | Label* miss = can_do_fast_api_call ? &miss_cleanup : miss_label; |
| 1047 | Register holder = |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1048 | stub_compiler_->CheckPrototypes(object, receiver, interceptor_holder, |
| 1049 | scratch1, scratch2, scratch3, |
| 1050 | name, depth1, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1051 | |
| 1052 | // Invoke an interceptor and if it provides a value, |
| 1053 | // branch to |regular_invoke|. |
| 1054 | Label regular_invoke; |
| 1055 | LoadWithInterceptor(masm, receiver, holder, interceptor_holder, scratch2, |
| 1056 | ®ular_invoke); |
| 1057 | |
| 1058 | // Interceptor returned nothing for this property. Try to use cached |
| 1059 | // constant function. |
| 1060 | |
| 1061 | // Check that the maps from interceptor's holder to constant function's |
| 1062 | // holder haven't changed and thus we can use cached constant function. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1063 | if (*interceptor_holder != lookup->holder()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1064 | stub_compiler_->CheckPrototypes(interceptor_holder, receiver, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1065 | Handle<JSObject>(lookup->holder()), |
| 1066 | scratch1, scratch2, scratch3, |
| 1067 | name, depth2, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1068 | } else { |
| 1069 | // CheckPrototypes has a side effect of fetching a 'holder' |
| 1070 | // for API (object which is instanceof for the signature). It's |
| 1071 | // safe to omit it here, as if present, it should be fetched |
| 1072 | // by the previous CheckPrototypes. |
| 1073 | ASSERT(depth2 == kInvalidProtoDepth); |
| 1074 | } |
| 1075 | |
| 1076 | // Invoke function. |
| 1077 | if (can_do_fast_api_call) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1078 | GenerateFastApiDirectCall(masm, optimization, arguments_.immediate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1079 | } else { |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1080 | CallKind call_kind = CallICBase::Contextual::decode(extra_ic_state_) |
| 1081 | ? CALL_AS_FUNCTION |
| 1082 | : CALL_AS_METHOD; |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1083 | Handle<JSFunction> function = optimization.constant_function(); |
| 1084 | ParameterCount expected(function); |
| 1085 | __ InvokeFunction(function, expected, arguments_, |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 1086 | JUMP_FUNCTION, NullCallWrapper(), call_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1087 | } |
| 1088 | |
| 1089 | // Deferred code for fast API call case---clean preallocated space. |
| 1090 | if (can_do_fast_api_call) { |
| 1091 | __ bind(&miss_cleanup); |
| 1092 | FreeSpaceForFastApiCall(masm); |
| 1093 | __ Branch(miss_label); |
| 1094 | } |
| 1095 | |
| 1096 | // Invoke a regular function. |
| 1097 | __ bind(®ular_invoke); |
| 1098 | if (can_do_fast_api_call) { |
| 1099 | FreeSpaceForFastApiCall(masm); |
| 1100 | } |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1101 | } |
| 1102 | |
| 1103 | void CompileRegular(MacroAssembler* masm, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1104 | Handle<JSObject> object, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1105 | Register receiver, |
| 1106 | Register scratch1, |
| 1107 | Register scratch2, |
| 1108 | Register scratch3, |
ulan@chromium.org | 6e196bf | 2013-03-13 09:38:22 +0000 | [diff] [blame] | 1109 | Handle<Name> name, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1110 | Handle<JSObject> interceptor_holder, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1111 | Label* miss_label) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1112 | Register holder = |
| 1113 | stub_compiler_->CheckPrototypes(object, receiver, interceptor_holder, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1114 | scratch1, scratch2, scratch3, |
| 1115 | name, miss_label); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1116 | |
| 1117 | // Call a runtime function to load the interceptor property. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1118 | FrameScope scope(masm, StackFrame::INTERNAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1119 | // Save the name_ register across the call. |
| 1120 | __ push(name_); |
| 1121 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1122 | PushInterceptorArguments(masm, receiver, holder, name_, interceptor_holder); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1123 | |
| 1124 | __ CallExternalReference( |
| 1125 | ExternalReference( |
| 1126 | IC_Utility(IC::kLoadPropertyWithInterceptorForCall), |
| 1127 | masm->isolate()), |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1128 | 6); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1129 | // Restore the name_ register. |
| 1130 | __ pop(name_); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1131 | // Leave the internal frame. |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1132 | } |
| 1133 | |
| 1134 | void LoadWithInterceptor(MacroAssembler* masm, |
| 1135 | Register receiver, |
| 1136 | Register holder, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1137 | Handle<JSObject> holder_obj, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1138 | Register scratch, |
| 1139 | Label* interceptor_succeeded) { |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1140 | { |
| 1141 | FrameScope scope(masm, StackFrame::INTERNAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1142 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1143 | __ Push(holder, name_); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1144 | CompileCallLoadPropertyWithInterceptor(masm, |
| 1145 | receiver, |
| 1146 | holder, |
| 1147 | name_, |
| 1148 | holder_obj); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1149 | __ pop(name_); // Restore the name. |
| 1150 | __ pop(receiver); // Restore the holder. |
| 1151 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1152 | // If interceptor returns no-result sentinel, call the constant function. |
| 1153 | __ LoadRoot(scratch, Heap::kNoInterceptorResultSentinelRootIndex); |
| 1154 | __ Branch(interceptor_succeeded, ne, v0, Operand(scratch)); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1155 | } |
| 1156 | |
| 1157 | StubCompiler* stub_compiler_; |
| 1158 | const ParameterCount& arguments_; |
| 1159 | Register name_; |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 1160 | Code::ExtraICState extra_ic_state_; |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1161 | }; |
| 1162 | |
| 1163 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1164 | // Calls GenerateCheckPropertyCell for each global object in the prototype chain |
| 1165 | // from object to (but not including) holder. |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1166 | static void GenerateCheckPropertyCells(MacroAssembler* masm, |
| 1167 | Handle<JSObject> object, |
| 1168 | Handle<JSObject> holder, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1169 | Handle<Name> name, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1170 | Register scratch, |
| 1171 | Label* miss) { |
| 1172 | Handle<JSObject> current = object; |
| 1173 | while (!current.is_identical_to(holder)) { |
| 1174 | if (current->IsGlobalObject()) { |
| 1175 | GenerateCheckPropertyCell(masm, |
| 1176 | Handle<GlobalObject>::cast(current), |
| 1177 | name, |
| 1178 | scratch, |
| 1179 | miss); |
| 1180 | } |
| 1181 | current = Handle<JSObject>(JSObject::cast(current->GetPrototype())); |
| 1182 | } |
| 1183 | } |
| 1184 | |
| 1185 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1186 | // Convert and store int passed in register ival to IEEE 754 single precision |
| 1187 | // floating point value at memory location (dst + 4 * wordoffset) |
| 1188 | // If FPU is available use it for conversion. |
| 1189 | static void StoreIntAsFloat(MacroAssembler* masm, |
| 1190 | Register dst, |
| 1191 | Register wordoffset, |
| 1192 | Register ival, |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1193 | Register scratch1) { |
| 1194 | __ mtc1(ival, f0); |
| 1195 | __ cvt_s_w(f0, f0); |
| 1196 | __ sll(scratch1, wordoffset, 2); |
| 1197 | __ addu(scratch1, dst, scratch1); |
| 1198 | __ swc1(f0, MemOperand(scratch1, 0)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1199 | } |
| 1200 | |
| 1201 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 1202 | void StubCompiler::GenerateTailCall(MacroAssembler* masm, Handle<Code> code) { |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1203 | __ Jump(code, RelocInfo::CODE_TARGET); |
| 1204 | } |
| 1205 | |
| 1206 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 1207 | #undef __ |
| 1208 | #define __ ACCESS_MASM(masm()) |
| 1209 | |
| 1210 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1211 | Register StubCompiler::CheckPrototypes(Handle<JSObject> object, |
| 1212 | Register object_reg, |
| 1213 | Handle<JSObject> holder, |
| 1214 | Register holder_reg, |
| 1215 | Register scratch1, |
| 1216 | Register scratch2, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1217 | Handle<Name> name, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1218 | int save_at_depth, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1219 | Label* miss, |
| 1220 | PrototypeCheckType check) { |
| 1221 | Handle<JSObject> first = object; |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1222 | // Make sure there's no overlap between holder and object registers. |
| 1223 | ASSERT(!scratch1.is(object_reg) && !scratch1.is(holder_reg)); |
| 1224 | ASSERT(!scratch2.is(object_reg) && !scratch2.is(holder_reg) |
| 1225 | && !scratch2.is(scratch1)); |
| 1226 | |
| 1227 | // Keep track of the current object in register reg. |
| 1228 | Register reg = object_reg; |
| 1229 | int depth = 0; |
| 1230 | |
| 1231 | if (save_at_depth == depth) { |
| 1232 | __ sw(reg, MemOperand(sp)); |
| 1233 | } |
| 1234 | |
| 1235 | // Check the maps in the prototype chain. |
| 1236 | // Traverse the prototype chain from the object and do map checks. |
| 1237 | Handle<JSObject> current = object; |
| 1238 | while (!current.is_identical_to(holder)) { |
| 1239 | ++depth; |
| 1240 | |
| 1241 | // Only global objects and objects that do not require access |
| 1242 | // checks are allowed in stubs. |
| 1243 | ASSERT(current->IsJSGlobalProxy() || !current->IsAccessCheckNeeded()); |
| 1244 | |
| 1245 | Handle<JSObject> prototype(JSObject::cast(current->GetPrototype())); |
| 1246 | if (!current->HasFastProperties() && |
| 1247 | !current->IsJSGlobalObject() && |
| 1248 | !current->IsJSGlobalProxy()) { |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1249 | if (!name->IsUniqueName()) { |
| 1250 | ASSERT(name->IsString()); |
| 1251 | name = factory()->InternalizeString(Handle<String>::cast(name)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1252 | } |
| 1253 | ASSERT(current->property_dictionary()->FindEntry(*name) == |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1254 | NameDictionary::kNotFound); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1255 | |
| 1256 | GenerateDictionaryNegativeLookup(masm(), miss, reg, name, |
| 1257 | scratch1, scratch2); |
| 1258 | |
| 1259 | __ lw(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 1260 | reg = holder_reg; // From now on the object will be in holder_reg. |
| 1261 | __ lw(reg, FieldMemOperand(scratch1, Map::kPrototypeOffset)); |
| 1262 | } else { |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1263 | Register map_reg = scratch1; |
| 1264 | if (!current.is_identical_to(first) || check == CHECK_ALL_MAPS) { |
| 1265 | Handle<Map> current_map(current->map()); |
| 1266 | // CheckMap implicitly loads the map of |reg| into |map_reg|. |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 1267 | __ CheckMap(reg, map_reg, current_map, miss, DONT_DO_SMI_CHECK); |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1268 | } else { |
| 1269 | __ lw(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset)); |
| 1270 | } |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1271 | // Check access rights to the global object. This has to happen after |
| 1272 | // the map check so that we know that the object is actually a global |
| 1273 | // object. |
| 1274 | if (current->IsJSGlobalProxy()) { |
| 1275 | __ CheckAccessGlobalProxy(reg, scratch2, miss); |
| 1276 | } |
| 1277 | reg = holder_reg; // From now on the object will be in holder_reg. |
| 1278 | |
| 1279 | if (heap()->InNewSpace(*prototype)) { |
| 1280 | // The prototype is in new space; we cannot store a reference to it |
| 1281 | // in the code. Load it from the map. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1282 | __ lw(reg, FieldMemOperand(map_reg, Map::kPrototypeOffset)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1283 | } else { |
| 1284 | // The prototype is in old space; load it directly. |
| 1285 | __ li(reg, Operand(prototype)); |
| 1286 | } |
| 1287 | } |
| 1288 | |
| 1289 | if (save_at_depth == depth) { |
| 1290 | __ sw(reg, MemOperand(sp)); |
| 1291 | } |
| 1292 | |
| 1293 | // Go to the next object in the prototype chain. |
| 1294 | current = prototype; |
| 1295 | } |
| 1296 | |
| 1297 | // Log the check depth. |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1298 | LOG(isolate(), IntEvent("check-maps-depth", depth + 1)); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1299 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1300 | if (!holder.is_identical_to(first) || check == CHECK_ALL_MAPS) { |
| 1301 | // Check the holder map. |
| 1302 | __ CheckMap(reg, scratch1, Handle<Map>(holder->map()), miss, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 1303 | DONT_DO_SMI_CHECK); |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1304 | } |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1305 | |
| 1306 | // Perform security check for access to the global object. |
| 1307 | ASSERT(holder->IsJSGlobalProxy() || !holder->IsAccessCheckNeeded()); |
| 1308 | if (holder->IsJSGlobalProxy()) { |
| 1309 | __ CheckAccessGlobalProxy(reg, scratch1, miss); |
| 1310 | } |
| 1311 | |
| 1312 | // If we've skipped any global objects, it's not enough to verify that |
| 1313 | // their maps haven't changed. We also need to check that the property |
| 1314 | // cell for the property is still empty. |
| 1315 | GenerateCheckPropertyCells(masm(), object, holder, name, scratch1, miss); |
| 1316 | |
| 1317 | // Return the register containing the holder. |
| 1318 | return reg; |
| 1319 | } |
| 1320 | |
| 1321 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1322 | void BaseLoadStubCompiler::HandlerFrontendFooter(Label* success, |
| 1323 | Label* miss) { |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1324 | if (!miss->is_unused()) { |
| 1325 | __ Branch(success); |
| 1326 | __ bind(miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 1327 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1328 | } |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1329 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1330 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1331 | |
| 1332 | Register BaseLoadStubCompiler::CallbackHandlerFrontend( |
| 1333 | Handle<JSObject> object, |
| 1334 | Register object_reg, |
| 1335 | Handle<JSObject> holder, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1336 | Handle<Name> name, |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1337 | Label* success, |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1338 | Handle<ExecutableAccessorInfo> callback) { |
| 1339 | Label miss; |
| 1340 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1341 | Register reg = HandlerFrontendHeader(object, object_reg, holder, name, &miss); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1342 | |
| 1343 | if (!holder->HasFastProperties() && !holder->IsJSGlobalObject()) { |
| 1344 | ASSERT(!reg.is(scratch2())); |
| 1345 | ASSERT(!reg.is(scratch3())); |
| 1346 | ASSERT(!reg.is(scratch4())); |
| 1347 | |
| 1348 | // Load the properties dictionary. |
| 1349 | Register dictionary = scratch4(); |
| 1350 | __ lw(dictionary, FieldMemOperand(reg, JSObject::kPropertiesOffset)); |
| 1351 | |
| 1352 | // Probe the dictionary. |
| 1353 | Label probe_done; |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1354 | NameDictionaryLookupStub::GeneratePositiveLookup(masm(), |
| 1355 | &miss, |
| 1356 | &probe_done, |
| 1357 | dictionary, |
| 1358 | this->name(), |
| 1359 | scratch2(), |
| 1360 | scratch3()); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1361 | __ bind(&probe_done); |
| 1362 | |
| 1363 | // If probing finds an entry in the dictionary, scratch3 contains the |
| 1364 | // pointer into the dictionary. Check that the value is the callback. |
| 1365 | Register pointer = scratch3(); |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1366 | const int kElementsStartOffset = NameDictionary::kHeaderSize + |
| 1367 | NameDictionary::kElementsStartIndex * kPointerSize; |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1368 | const int kValueOffset = kElementsStartOffset + kPointerSize; |
| 1369 | __ lw(scratch2(), FieldMemOperand(pointer, kValueOffset)); |
| 1370 | __ Branch(&miss, ne, scratch2(), Operand(callback)); |
| 1371 | } |
| 1372 | |
| 1373 | HandlerFrontendFooter(success, &miss); |
| 1374 | return reg; |
| 1375 | } |
| 1376 | |
| 1377 | |
| 1378 | void BaseLoadStubCompiler::NonexistentHandlerFrontend( |
| 1379 | Handle<JSObject> object, |
| 1380 | Handle<JSObject> last, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1381 | Handle<Name> name, |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1382 | Label* success, |
| 1383 | Handle<GlobalObject> global) { |
| 1384 | Label miss; |
| 1385 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 1386 | HandlerFrontendHeader(object, receiver(), last, name, &miss); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1387 | |
| 1388 | // If the last object in the prototype chain is a global object, |
| 1389 | // check that the global property cell is empty. |
| 1390 | if (!global.is_null()) { |
| 1391 | GenerateCheckPropertyCell(masm(), global, name, scratch2(), &miss); |
| 1392 | } |
| 1393 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1394 | HandlerFrontendFooter(success, &miss); |
| 1395 | } |
| 1396 | |
| 1397 | |
| 1398 | void BaseLoadStubCompiler::GenerateLoadField(Register reg, |
| 1399 | Handle<JSObject> holder, |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1400 | PropertyIndex field, |
| 1401 | Representation representation) { |
| 1402 | if (!reg.is(receiver())) __ mov(receiver(), reg); |
| 1403 | if (kind() == Code::LOAD_IC) { |
| 1404 | LoadFieldStub stub(field.is_inobject(holder), |
| 1405 | field.translate(holder), |
| 1406 | representation); |
| 1407 | GenerateTailCall(masm(), stub.GetCode(isolate())); |
| 1408 | } else { |
| 1409 | KeyedLoadFieldStub stub(field.is_inobject(holder), |
| 1410 | field.translate(holder), |
| 1411 | representation); |
| 1412 | GenerateTailCall(masm(), stub.GetCode(isolate())); |
| 1413 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1414 | } |
| 1415 | |
| 1416 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1417 | void BaseLoadStubCompiler::GenerateLoadConstant(Handle<JSFunction> value) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1418 | // Return the constant value. |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 1419 | __ LoadHeapObject(v0, value); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1420 | __ Ret(); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1421 | } |
| 1422 | |
| 1423 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1424 | void BaseLoadStubCompiler::GenerateLoadCallback( |
| 1425 | Register reg, |
| 1426 | Handle<ExecutableAccessorInfo> callback) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1427 | // Build AccessorInfo::args_ list on the stack and push property name below |
| 1428 | // the exit frame to make GC aware of them and store pointers to them. |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1429 | __ push(receiver()); |
| 1430 | __ mov(scratch2(), sp); // scratch2 = AccessorInfo::args_ |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1431 | if (heap()->InNewSpace(callback->data())) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1432 | __ li(scratch3(), callback); |
| 1433 | __ lw(scratch3(), FieldMemOperand(scratch3(), |
| 1434 | ExecutableAccessorInfo::kDataOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1435 | } else { |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1436 | __ li(scratch3(), Handle<Object>(callback->data(), isolate())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1437 | } |
palfia@homejinni.com | 79d0bf7 | 2013-06-10 19:35:04 +0000 | [diff] [blame] | 1438 | __ Subu(sp, sp, 6 * kPointerSize); |
| 1439 | __ sw(reg, MemOperand(sp, 5 * kPointerSize)); |
| 1440 | __ sw(scratch3(), MemOperand(sp, 4 * kPointerSize)); |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 1441 | __ LoadRoot(scratch3(), Heap::kUndefinedValueRootIndex); |
palfia@homejinni.com | 79d0bf7 | 2013-06-10 19:35:04 +0000 | [diff] [blame] | 1442 | __ sw(scratch3(), MemOperand(sp, 3 * kPointerSize)); |
| 1443 | __ sw(scratch3(), MemOperand(sp, 2 * kPointerSize)); |
jkummerow@chromium.org | c118402 | 2013-05-28 16:58:15 +0000 | [diff] [blame] | 1444 | __ li(scratch4(), |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1445 | Operand(ExternalReference::isolate_address(isolate()))); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1446 | __ sw(scratch4(), MemOperand(sp, 1 * kPointerSize)); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1447 | __ sw(name(), MemOperand(sp, 0 * kPointerSize)); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1448 | |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 1449 | Address getter_address = v8::ToCData<Address>(callback->getter()); |
| 1450 | bool returns_handle = |
| 1451 | !CallbackTable::ReturnsVoid(isolate(), getter_address); |
| 1452 | |
| 1453 | Register first_arg = returns_handle ? a1 : a0; |
| 1454 | Register second_arg = returns_handle ? a2 : a1; |
| 1455 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1456 | __ mov(a2, scratch2()); // Saved in case scratch2 == a1. |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 1457 | __ mov(first_arg, sp); // (first argument - see note below) = Handle<Name> |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1458 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1459 | // NOTE: the O32 abi requires a0 to hold a special pointer when returning a |
| 1460 | // struct from the function (which is currently the case). This means we pass |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 1461 | // the arguments in a1-a2 instead of a0-a1, if returns_handle is true. |
| 1462 | // CallApiFunctionAndReturn will set up a0. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1463 | |
| 1464 | const int kApiStackSpace = 1; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1465 | FrameScope frame_scope(masm(), StackFrame::MANUAL); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1466 | __ EnterExitFrame(false, kApiStackSpace); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1467 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1468 | // Create AccessorInfo instance on the stack above the exit frame with |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 1469 | // scratch2 (internal::Object** args_) as the data. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1470 | __ sw(a2, MemOperand(sp, kPointerSize)); |
svenpanne@chromium.org | 53ad175 | 2013-05-27 12:20:38 +0000 | [diff] [blame] | 1471 | // (second argument - see note above) = AccessorInfo& |
| 1472 | __ Addu(second_arg, sp, kPointerSize); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1473 | |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1474 | const int kStackUnwindSpace = kFastApiCallArguments + 1; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1475 | ApiFunction fun(getter_address); |
ulan@chromium.org | bf9432e | 2013-05-22 14:05:23 +0000 | [diff] [blame] | 1476 | ExternalReference::Type type = |
| 1477 | returns_handle ? |
| 1478 | ExternalReference::DIRECT_GETTER_CALL : |
| 1479 | ExternalReference::DIRECT_GETTER_CALL_NEW; |
| 1480 | |
| 1481 | ExternalReference ref = ExternalReference(&fun, type, isolate()); |
| 1482 | __ CallApiFunctionAndReturn(ref, |
| 1483 | kStackUnwindSpace, |
| 1484 | returns_handle, |
palfia@homejinni.com | 79d0bf7 | 2013-06-10 19:35:04 +0000 | [diff] [blame] | 1485 | 5); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1486 | } |
| 1487 | |
| 1488 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1489 | void BaseLoadStubCompiler::GenerateLoadInterceptor( |
| 1490 | Register holder_reg, |
| 1491 | Handle<JSObject> object, |
| 1492 | Handle<JSObject> interceptor_holder, |
| 1493 | LookupResult* lookup, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1494 | Handle<Name> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1495 | ASSERT(interceptor_holder->HasNamedInterceptor()); |
| 1496 | ASSERT(!interceptor_holder->GetNamedInterceptor()->getter()->IsUndefined()); |
| 1497 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1498 | // So far the most popular follow ups for interceptor loads are FIELD |
| 1499 | // and CALLBACKS, so inline only them, other cases may be added |
| 1500 | // later. |
| 1501 | bool compile_followup_inline = false; |
jkummerow@chromium.org | 05ed9dd | 2012-01-23 14:42:48 +0000 | [diff] [blame] | 1502 | if (lookup->IsFound() && lookup->IsCacheable()) { |
yangguo@chromium.org | de0db00 | 2012-06-22 13:44:28 +0000 | [diff] [blame] | 1503 | if (lookup->IsField()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1504 | compile_followup_inline = true; |
| 1505 | } else if (lookup->type() == CALLBACKS && |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 1506 | lookup->GetCallbackObject()->IsExecutableAccessorInfo()) { |
| 1507 | ExecutableAccessorInfo* callback = |
| 1508 | ExecutableAccessorInfo::cast(lookup->GetCallbackObject()); |
mmassi@chromium.org | 7028c05 | 2012-06-13 11:51:58 +0000 | [diff] [blame] | 1509 | compile_followup_inline = callback->getter() != NULL && |
| 1510 | callback->IsCompatibleReceiver(*object); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1511 | } |
| 1512 | } |
| 1513 | |
| 1514 | if (compile_followup_inline) { |
| 1515 | // Compile the interceptor call, followed by inline code to load the |
| 1516 | // property from further up the prototype chain if the call fails. |
| 1517 | // Check that the maps haven't changed. |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1518 | ASSERT(holder_reg.is(receiver()) || holder_reg.is(scratch1())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1519 | |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1520 | // Preserve the receiver register explicitly whenever it is different from |
| 1521 | // the holder and it is needed should the interceptor return without any |
| 1522 | // result. The CALLBACKS case needs the receiver to be passed into C++ code, |
| 1523 | // the FIELD case might cause a miss during the prototype check. |
| 1524 | bool must_perfrom_prototype_check = *interceptor_holder != lookup->holder(); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1525 | bool must_preserve_receiver_reg = !receiver().is(holder_reg) && |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1526 | (lookup->type() == CALLBACKS || must_perfrom_prototype_check); |
| 1527 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1528 | // Save necessary data before invoking an interceptor. |
| 1529 | // Requires a frame to make GC aware of pushed pointers. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1530 | { |
| 1531 | FrameScope frame_scope(masm(), StackFrame::INTERNAL); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1532 | if (must_preserve_receiver_reg) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1533 | __ Push(receiver(), holder_reg, this->name()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1534 | } else { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1535 | __ Push(holder_reg, this->name()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1536 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1537 | // Invoke an interceptor. Note: map checks from receiver to |
| 1538 | // interceptor's holder has been compiled before (see a caller |
| 1539 | // of this method). |
| 1540 | CompileCallLoadPropertyWithInterceptor(masm(), |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1541 | receiver(), |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1542 | holder_reg, |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1543 | this->name(), |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1544 | interceptor_holder); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1545 | // Check if interceptor provided a value for property. If it's |
| 1546 | // the case, return immediately. |
| 1547 | Label interceptor_failed; |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1548 | __ LoadRoot(scratch1(), Heap::kNoInterceptorResultSentinelRootIndex); |
| 1549 | __ Branch(&interceptor_failed, eq, v0, Operand(scratch1())); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1550 | frame_scope.GenerateLeaveFrame(); |
| 1551 | __ Ret(); |
| 1552 | |
| 1553 | __ bind(&interceptor_failed); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1554 | __ pop(this->name()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1555 | __ pop(holder_reg); |
jkummerow@chromium.org | 212d964 | 2012-05-11 15:02:09 +0000 | [diff] [blame] | 1556 | if (must_preserve_receiver_reg) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1557 | __ pop(receiver()); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1558 | } |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1559 | // Leave the internal frame. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1560 | } |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1561 | GenerateLoadPostInterceptor(holder_reg, interceptor_holder, name, lookup); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1562 | } else { // !compile_followup_inline |
| 1563 | // Call the runtime system to load the interceptor. |
| 1564 | // Check that the maps haven't changed. |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 1565 | PushInterceptorArguments(masm(), receiver(), holder_reg, |
| 1566 | this->name(), interceptor_holder); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1567 | |
| 1568 | ExternalReference ref = ExternalReference( |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1569 | IC_Utility(IC::kLoadPropertyWithInterceptorForLoad), isolate()); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 1570 | __ TailCallExternalReference(ref, 6, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1571 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1572 | } |
| 1573 | |
| 1574 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1575 | void CallStubCompiler::GenerateNameCheck(Handle<Name> name, Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1576 | if (kind_ == Code::KEYED_CALL_IC) { |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1577 | __ Branch(miss, ne, a2, Operand(name)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1578 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1579 | } |
| 1580 | |
| 1581 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1582 | void CallStubCompiler::GenerateGlobalReceiverCheck(Handle<JSObject> object, |
| 1583 | Handle<JSObject> holder, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1584 | Handle<Name> name, |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1585 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1586 | ASSERT(holder->IsGlobalObject()); |
| 1587 | |
| 1588 | // Get the number of arguments. |
| 1589 | const int argc = arguments().immediate(); |
| 1590 | |
| 1591 | // Get the receiver from the stack. |
| 1592 | __ lw(a0, MemOperand(sp, argc * kPointerSize)); |
| 1593 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1594 | // Check that the maps haven't changed. |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 1595 | __ JumpIfSmi(a0, miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1596 | CheckPrototypes(object, a0, holder, a3, a1, t0, name, miss); |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 1597 | } |
| 1598 | |
| 1599 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1600 | void CallStubCompiler::GenerateLoadFunctionFromCell( |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 1601 | Handle<Cell> cell, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1602 | Handle<JSFunction> function, |
| 1603 | Label* miss) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1604 | // Get the value from the cell. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1605 | __ li(a3, Operand(cell)); |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 1606 | __ lw(a1, FieldMemOperand(a3, Cell::kValueOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1607 | |
| 1608 | // Check that the cell contains the same function. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1609 | if (heap()->InNewSpace(*function)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1610 | // We can't embed a pointer to a function in new space so we have |
| 1611 | // to verify that the shared function info is unchanged. This has |
| 1612 | // the nice side effect that multiple closures based on the same |
| 1613 | // function can all use this call IC. Before we load through the |
| 1614 | // function, we have to verify that it still is a function. |
| 1615 | __ JumpIfSmi(a1, miss); |
| 1616 | __ GetObjectType(a1, a3, a3); |
| 1617 | __ Branch(miss, ne, a3, Operand(JS_FUNCTION_TYPE)); |
| 1618 | |
| 1619 | // Check the shared function info. Make sure it hasn't changed. |
| 1620 | __ li(a3, Handle<SharedFunctionInfo>(function->shared())); |
| 1621 | __ lw(t0, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset)); |
| 1622 | __ Branch(miss, ne, t0, Operand(a3)); |
| 1623 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1624 | __ Branch(miss, ne, a1, Operand(function)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1625 | } |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 1626 | } |
| 1627 | |
| 1628 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1629 | void CallStubCompiler::GenerateMissBranch() { |
| 1630 | Handle<Code> code = |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1631 | isolate()->stub_cache()->ComputeCallMiss(arguments().immediate(), |
| 1632 | kind_, |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1633 | extra_state_); |
| 1634 | __ Jump(code, RelocInfo::CODE_TARGET); |
| 1635 | } |
| 1636 | |
| 1637 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1638 | Handle<Code> CallStubCompiler::CompileCallField(Handle<JSObject> object, |
| 1639 | Handle<JSObject> holder, |
yangguo@chromium.org | fb37721 | 2012-11-16 14:43:43 +0000 | [diff] [blame] | 1640 | PropertyIndex index, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 1641 | Handle<Name> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1642 | // ----------- S t a t e ------------- |
| 1643 | // -- a2 : name |
| 1644 | // -- ra : return address |
| 1645 | // ----------------------------------- |
| 1646 | Label miss; |
| 1647 | |
| 1648 | GenerateNameCheck(name, &miss); |
| 1649 | |
| 1650 | const int argc = arguments().immediate(); |
| 1651 | |
| 1652 | // Get the receiver of the function from the stack into a0. |
| 1653 | __ lw(a0, MemOperand(sp, argc * kPointerSize)); |
| 1654 | // Check that the receiver isn't a smi. |
| 1655 | __ JumpIfSmi(a0, &miss, t0); |
| 1656 | |
| 1657 | // Do the right check and compute the holder register. |
| 1658 | Register reg = CheckPrototypes(object, a0, holder, a1, a3, t0, name, &miss); |
ulan@chromium.org | 57ff881 | 2013-05-10 08:16:55 +0000 | [diff] [blame] | 1659 | GenerateFastPropertyLoad(masm(), a1, reg, index.is_inobject(holder), |
| 1660 | index.translate(holder), Representation::Tagged()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1661 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1662 | GenerateCallFunction(masm(), object, arguments(), &miss, extra_state_); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1663 | |
| 1664 | // Handle call cache miss. |
| 1665 | __ bind(&miss); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 1666 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1667 | |
| 1668 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 1669 | return GetCode(Code::FIELD, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 1670 | } |
| 1671 | |
| 1672 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1673 | Handle<Code> CallStubCompiler::CompileArrayPushCall( |
| 1674 | Handle<Object> object, |
| 1675 | Handle<JSObject> holder, |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 1676 | Handle<Cell> cell, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1677 | Handle<JSFunction> function, |
| 1678 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1679 | // ----------- S t a t e ------------- |
| 1680 | // -- a2 : name |
| 1681 | // -- ra : return address |
| 1682 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1683 | // -- ... |
| 1684 | // -- sp[argc * 4] : receiver |
| 1685 | // ----------------------------------- |
| 1686 | |
| 1687 | // If object is not an array, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1688 | if (!object->IsJSArray() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1689 | |
| 1690 | Label miss; |
| 1691 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1692 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1693 | |
| 1694 | Register receiver = a1; |
| 1695 | |
| 1696 | // Get the receiver from the stack. |
| 1697 | const int argc = arguments().immediate(); |
| 1698 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
| 1699 | |
| 1700 | // Check that the receiver isn't a smi. |
| 1701 | __ JumpIfSmi(receiver, &miss); |
| 1702 | |
| 1703 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1704 | CheckPrototypes(Handle<JSObject>::cast(object), receiver, holder, a3, v0, t0, |
| 1705 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1706 | |
| 1707 | if (argc == 0) { |
| 1708 | // Nothing to do, just return the length. |
| 1709 | __ lw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1710 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1711 | } else { |
| 1712 | Label call_builtin; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1713 | if (argc == 1) { // Otherwise fall through to call the builtin. |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1714 | Label attempt_to_grow_elements, with_write_barrier, check_double; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1715 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1716 | Register elements = t2; |
| 1717 | Register end_elements = t1; |
| 1718 | // Get the elements array of the object. |
| 1719 | __ lw(elements, FieldMemOperand(receiver, JSArray::kElementsOffset)); |
| 1720 | |
| 1721 | // Check that the elements are in fast mode and writable. |
| 1722 | __ CheckMap(elements, |
| 1723 | v0, |
| 1724 | Heap::kFixedArrayMapRootIndex, |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1725 | &check_double, |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1726 | DONT_DO_SMI_CHECK); |
| 1727 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1728 | // Get the array's length into v0 and calculate new length. |
| 1729 | __ lw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1730 | STATIC_ASSERT(kSmiTagSize == 1); |
| 1731 | STATIC_ASSERT(kSmiTag == 0); |
| 1732 | __ Addu(v0, v0, Operand(Smi::FromInt(argc))); |
| 1733 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1734 | // Get the elements' length. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1735 | __ lw(t0, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
| 1736 | |
| 1737 | // Check if we could survive without allocation. |
| 1738 | __ Branch(&attempt_to_grow_elements, gt, v0, Operand(t0)); |
| 1739 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1740 | // Check if value is a smi. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1741 | __ lw(t0, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 1742 | __ JumpIfNotSmi(t0, &with_write_barrier); |
| 1743 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1744 | // Save new length. |
| 1745 | __ sw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1746 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1747 | // Store the value. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1748 | // We may need a register containing the address end_elements below, |
| 1749 | // so write back the value in end_elements. |
| 1750 | __ sll(end_elements, v0, kPointerSizeLog2 - kSmiTagSize); |
| 1751 | __ Addu(end_elements, elements, end_elements); |
| 1752 | const int kEndElementsOffset = |
| 1753 | FixedArray::kHeaderSize - kHeapObjectTag - argc * kPointerSize; |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 1754 | __ Addu(end_elements, end_elements, kEndElementsOffset); |
| 1755 | __ sw(t0, MemOperand(end_elements)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1756 | |
| 1757 | // Check for a smi. |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1758 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1759 | |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1760 | __ bind(&check_double); |
| 1761 | |
| 1762 | // Check that the elements are in fast mode and writable. |
| 1763 | __ CheckMap(elements, |
| 1764 | a0, |
| 1765 | Heap::kFixedDoubleArrayMapRootIndex, |
| 1766 | &call_builtin, |
| 1767 | DONT_DO_SMI_CHECK); |
| 1768 | |
| 1769 | // Get the array's length into r0 and calculate new length. |
| 1770 | __ lw(a0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1771 | STATIC_ASSERT(kSmiTagSize == 1); |
| 1772 | STATIC_ASSERT(kSmiTag == 0); |
| 1773 | __ Addu(a0, a0, Operand(Smi::FromInt(argc))); |
| 1774 | |
| 1775 | // Get the elements' length. |
| 1776 | __ lw(t0, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
| 1777 | |
| 1778 | // Check if we could survive without allocation. |
| 1779 | __ Branch(&call_builtin, gt, a0, Operand(t0)); |
| 1780 | |
| 1781 | __ lw(t0, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 1782 | __ StoreNumberToDoubleElements( |
| 1783 | t0, a0, elements, a3, t1, a2, t5, |
| 1784 | &call_builtin, argc * kDoubleSize); |
| 1785 | |
| 1786 | // Save new length. |
| 1787 | __ sw(a0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1788 | |
| 1789 | // Check for a smi. |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1790 | __ DropAndRet(argc + 1); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1791 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1792 | __ bind(&with_write_barrier); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1793 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1794 | __ lw(a3, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 1795 | |
| 1796 | if (FLAG_smi_only_arrays && !FLAG_trace_elements_transitions) { |
| 1797 | Label fast_object, not_fast_object; |
| 1798 | __ CheckFastObjectElements(a3, t3, ¬_fast_object); |
| 1799 | __ jmp(&fast_object); |
| 1800 | // In case of fast smi-only, convert to fast object, otherwise bail out. |
| 1801 | __ bind(¬_fast_object); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1802 | __ CheckFastSmiElements(a3, t3, &call_builtin); |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1803 | |
| 1804 | __ lw(t3, FieldMemOperand(t0, HeapObject::kMapOffset)); |
| 1805 | __ LoadRoot(at, Heap::kHeapNumberMapRootIndex); |
| 1806 | __ Branch(&call_builtin, eq, t3, Operand(at)); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1807 | // edx: receiver |
ulan@chromium.org | 8e8d882 | 2012-11-23 14:36:46 +0000 | [diff] [blame] | 1808 | // a3: map |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1809 | Label try_holey_map; |
| 1810 | __ LoadTransitionedArrayMapConditional(FAST_SMI_ELEMENTS, |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1811 | FAST_ELEMENTS, |
| 1812 | a3, |
| 1813 | t3, |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1814 | &try_holey_map); |
| 1815 | __ mov(a2, receiver); |
| 1816 | ElementsTransitionGenerator:: |
yangguo@chromium.org | 28381b4 | 2013-01-21 14:39:38 +0000 | [diff] [blame] | 1817 | GenerateMapChangeElementsTransition(masm(), |
| 1818 | DONT_TRACK_ALLOCATION_SITE, |
| 1819 | NULL); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1820 | __ jmp(&fast_object); |
| 1821 | |
| 1822 | __ bind(&try_holey_map); |
| 1823 | __ LoadTransitionedArrayMapConditional(FAST_HOLEY_SMI_ELEMENTS, |
| 1824 | FAST_HOLEY_ELEMENTS, |
| 1825 | a3, |
| 1826 | t3, |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1827 | &call_builtin); |
| 1828 | __ mov(a2, receiver); |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 1829 | ElementsTransitionGenerator:: |
yangguo@chromium.org | 28381b4 | 2013-01-21 14:39:38 +0000 | [diff] [blame] | 1830 | GenerateMapChangeElementsTransition(masm(), |
| 1831 | DONT_TRACK_ALLOCATION_SITE, |
| 1832 | NULL); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1833 | __ bind(&fast_object); |
| 1834 | } else { |
| 1835 | __ CheckFastObjectElements(a3, a3, &call_builtin); |
| 1836 | } |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1837 | |
| 1838 | // Save new length. |
| 1839 | __ sw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1840 | |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1841 | // Store the value. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1842 | // We may need a register containing the address end_elements below, |
| 1843 | // so write back the value in end_elements. |
| 1844 | __ sll(end_elements, v0, kPointerSizeLog2 - kSmiTagSize); |
| 1845 | __ Addu(end_elements, elements, end_elements); |
| 1846 | __ Addu(end_elements, end_elements, kEndElementsOffset); |
| 1847 | __ sw(t0, MemOperand(end_elements)); |
| 1848 | |
| 1849 | __ RecordWrite(elements, |
| 1850 | end_elements, |
| 1851 | t0, |
| 1852 | kRAHasNotBeenSaved, |
| 1853 | kDontSaveFPRegs, |
| 1854 | EMIT_REMEMBERED_SET, |
| 1855 | OMIT_SMI_CHECK); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1856 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1857 | |
| 1858 | __ bind(&attempt_to_grow_elements); |
| 1859 | // v0: array's length + 1. |
| 1860 | // t0: elements' length. |
| 1861 | |
| 1862 | if (!FLAG_inline_new) { |
| 1863 | __ Branch(&call_builtin); |
| 1864 | } |
| 1865 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1866 | __ lw(a2, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 1867 | // Growing elements that are SMI-only requires special handling in case |
| 1868 | // the new element is non-Smi. For now, delegate to the builtin. |
| 1869 | Label no_fast_elements_check; |
| 1870 | __ JumpIfSmi(a2, &no_fast_elements_check); |
| 1871 | __ lw(t3, FieldMemOperand(receiver, HeapObject::kMapOffset)); |
| 1872 | __ CheckFastObjectElements(t3, t3, &call_builtin); |
| 1873 | __ bind(&no_fast_elements_check); |
| 1874 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1875 | ExternalReference new_space_allocation_top = |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1876 | ExternalReference::new_space_allocation_top_address(isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1877 | ExternalReference new_space_allocation_limit = |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1878 | ExternalReference::new_space_allocation_limit_address(isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1879 | |
| 1880 | const int kAllocationDelta = 4; |
| 1881 | // Load top and check if it is the end of elements. |
| 1882 | __ sll(end_elements, v0, kPointerSizeLog2 - kSmiTagSize); |
| 1883 | __ Addu(end_elements, elements, end_elements); |
| 1884 | __ Addu(end_elements, end_elements, Operand(kEndElementsOffset)); |
| 1885 | __ li(t3, Operand(new_space_allocation_top)); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1886 | __ lw(a3, MemOperand(t3)); |
| 1887 | __ Branch(&call_builtin, ne, end_elements, Operand(a3)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1888 | |
| 1889 | __ li(t5, Operand(new_space_allocation_limit)); |
| 1890 | __ lw(t5, MemOperand(t5)); |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1891 | __ Addu(a3, a3, Operand(kAllocationDelta * kPointerSize)); |
| 1892 | __ Branch(&call_builtin, hi, a3, Operand(t5)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1893 | |
| 1894 | // We fit and could grow elements. |
| 1895 | // Update new_space_allocation_top. |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1896 | __ sw(a3, MemOperand(t3)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1897 | // Push the argument. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 1898 | __ sw(a2, MemOperand(end_elements)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1899 | // Fill the rest with holes. |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1900 | __ LoadRoot(a3, Heap::kTheHoleValueRootIndex); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1901 | for (int i = 1; i < kAllocationDelta; i++) { |
yangguo@chromium.org | 78d1ad4 | 2012-02-09 13:53:47 +0000 | [diff] [blame] | 1902 | __ sw(a3, MemOperand(end_elements, i * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1903 | } |
| 1904 | |
| 1905 | // Update elements' and array's sizes. |
| 1906 | __ sw(v0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1907 | __ Addu(t0, t0, Operand(Smi::FromInt(kAllocationDelta))); |
| 1908 | __ sw(t0, FieldMemOperand(elements, FixedArray::kLengthOffset)); |
| 1909 | |
| 1910 | // Elements are in new space, so write barrier is not required. |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1911 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1912 | } |
| 1913 | __ bind(&call_builtin); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1914 | __ TailCallExternalReference( |
| 1915 | ExternalReference(Builtins::c_ArrayPush, isolate()), argc + 1, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1916 | } |
| 1917 | |
| 1918 | // Handle call cache miss. |
| 1919 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1920 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1921 | |
| 1922 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1923 | return GetCode(function); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 1924 | } |
| 1925 | |
| 1926 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1927 | Handle<Code> CallStubCompiler::CompileArrayPopCall( |
| 1928 | Handle<Object> object, |
| 1929 | Handle<JSObject> holder, |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 1930 | Handle<Cell> cell, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1931 | Handle<JSFunction> function, |
| 1932 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1933 | // ----------- S t a t e ------------- |
| 1934 | // -- a2 : name |
| 1935 | // -- ra : return address |
| 1936 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 1937 | // -- ... |
| 1938 | // -- sp[argc * 4] : receiver |
| 1939 | // ----------------------------------- |
| 1940 | |
| 1941 | // If object is not an array, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1942 | if (!object->IsJSArray() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1943 | |
| 1944 | Label miss, return_undefined, call_builtin; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1945 | Register receiver = a1; |
| 1946 | Register elements = a3; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1947 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1948 | |
| 1949 | // Get the receiver from the stack. |
| 1950 | const int argc = arguments().immediate(); |
| 1951 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1952 | // Check that the receiver isn't a smi. |
| 1953 | __ JumpIfSmi(receiver, &miss); |
| 1954 | |
| 1955 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 1956 | CheckPrototypes(Handle<JSObject>::cast(object), receiver, holder, elements, |
| 1957 | t0, v0, name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1958 | |
| 1959 | // Get the elements array of the object. |
| 1960 | __ lw(elements, FieldMemOperand(receiver, JSArray::kElementsOffset)); |
| 1961 | |
| 1962 | // Check that the elements are in fast mode and writable. |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 1963 | __ CheckMap(elements, |
| 1964 | v0, |
| 1965 | Heap::kFixedArrayMapRootIndex, |
| 1966 | &call_builtin, |
| 1967 | DONT_DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1968 | |
| 1969 | // Get the array's length into t0 and calculate new length. |
| 1970 | __ lw(t0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1971 | __ Subu(t0, t0, Operand(Smi::FromInt(1))); |
| 1972 | __ Branch(&return_undefined, lt, t0, Operand(zero_reg)); |
| 1973 | |
| 1974 | // Get the last element. |
| 1975 | __ LoadRoot(t2, Heap::kTheHoleValueRootIndex); |
| 1976 | STATIC_ASSERT(kSmiTagSize == 1); |
| 1977 | STATIC_ASSERT(kSmiTag == 0); |
| 1978 | // We can't address the last element in one operation. Compute the more |
| 1979 | // expensive shift first, and use an offset later on. |
| 1980 | __ sll(t1, t0, kPointerSizeLog2 - kSmiTagSize); |
| 1981 | __ Addu(elements, elements, t1); |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 1982 | __ lw(v0, FieldMemOperand(elements, FixedArray::kHeaderSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1983 | __ Branch(&call_builtin, eq, v0, Operand(t2)); |
| 1984 | |
| 1985 | // Set the array's length. |
| 1986 | __ sw(t0, FieldMemOperand(receiver, JSArray::kLengthOffset)); |
| 1987 | |
| 1988 | // Fill with the hole. |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 1989 | __ sw(t2, FieldMemOperand(elements, FixedArray::kHeaderSize)); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1990 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1991 | |
| 1992 | __ bind(&return_undefined); |
| 1993 | __ LoadRoot(v0, Heap::kUndefinedValueRootIndex); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 1994 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1995 | |
| 1996 | __ bind(&call_builtin); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 1997 | __ TailCallExternalReference( |
| 1998 | ExternalReference(Builtins::c_ArrayPop, isolate()), argc + 1, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 1999 | |
| 2000 | // Handle call cache miss. |
| 2001 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2002 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2003 | |
| 2004 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2005 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2006 | } |
| 2007 | |
| 2008 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2009 | Handle<Code> CallStubCompiler::CompileStringCharCodeAtCall( |
| 2010 | Handle<Object> object, |
| 2011 | Handle<JSObject> holder, |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 2012 | Handle<Cell> cell, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2013 | Handle<JSFunction> function, |
| 2014 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2015 | // ----------- S t a t e ------------- |
| 2016 | // -- a2 : function name |
| 2017 | // -- ra : return address |
| 2018 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2019 | // -- ... |
| 2020 | // -- sp[argc * 4] : receiver |
| 2021 | // ----------------------------------- |
| 2022 | |
| 2023 | // If object is not a string, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2024 | if (!object->IsString() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2025 | |
| 2026 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2027 | Label miss; |
| 2028 | Label name_miss; |
| 2029 | Label index_out_of_range; |
| 2030 | |
| 2031 | Label* index_out_of_range_label = &index_out_of_range; |
| 2032 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2033 | if (kind_ == Code::CALL_IC && |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2034 | (CallICBase::StringStubState::decode(extra_state_) == |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2035 | DEFAULT_STRING_STUB)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2036 | index_out_of_range_label = &miss; |
| 2037 | } |
| 2038 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2039 | GenerateNameCheck(name, &name_miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2040 | |
| 2041 | // Check that the maps starting from the prototype haven't changed. |
| 2042 | GenerateDirectLoadGlobalFunctionPrototype(masm(), |
| 2043 | Context::STRING_FUNCTION_INDEX, |
| 2044 | v0, |
| 2045 | &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2046 | ASSERT(!object.is_identical_to(holder)); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2047 | CheckPrototypes( |
| 2048 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
| 2049 | v0, holder, a1, a3, t0, name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2050 | |
| 2051 | Register receiver = a1; |
| 2052 | Register index = t1; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2053 | Register result = v0; |
| 2054 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
| 2055 | if (argc > 0) { |
| 2056 | __ lw(index, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 2057 | } else { |
| 2058 | __ LoadRoot(index, Heap::kUndefinedValueRootIndex); |
| 2059 | } |
| 2060 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2061 | StringCharCodeAtGenerator generator(receiver, |
| 2062 | index, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2063 | result, |
| 2064 | &miss, // When not a string. |
| 2065 | &miss, // When not a number. |
| 2066 | index_out_of_range_label, |
| 2067 | STRING_INDEX_IS_NUMBER); |
| 2068 | generator.GenerateFast(masm()); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 2069 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2070 | |
| 2071 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2072 | generator.GenerateSlow(masm(), call_helper); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2073 | |
| 2074 | if (index_out_of_range.is_linked()) { |
| 2075 | __ bind(&index_out_of_range); |
| 2076 | __ LoadRoot(v0, Heap::kNanValueRootIndex); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 2077 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2078 | } |
| 2079 | |
| 2080 | __ bind(&miss); |
| 2081 | // Restore function name in a2. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2082 | __ li(a2, name); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2083 | __ bind(&name_miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2084 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2085 | |
| 2086 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2087 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2088 | } |
| 2089 | |
| 2090 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2091 | Handle<Code> CallStubCompiler::CompileStringCharAtCall( |
| 2092 | Handle<Object> object, |
| 2093 | Handle<JSObject> holder, |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 2094 | Handle<Cell> cell, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2095 | Handle<JSFunction> function, |
| 2096 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2097 | // ----------- S t a t e ------------- |
| 2098 | // -- a2 : function name |
| 2099 | // -- ra : return address |
| 2100 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2101 | // -- ... |
| 2102 | // -- sp[argc * 4] : receiver |
| 2103 | // ----------------------------------- |
| 2104 | |
| 2105 | // If object is not a string, bail out to regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2106 | if (!object->IsString() || !cell.is_null()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2107 | |
| 2108 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2109 | Label miss; |
| 2110 | Label name_miss; |
| 2111 | Label index_out_of_range; |
| 2112 | Label* index_out_of_range_label = &index_out_of_range; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2113 | if (kind_ == Code::CALL_IC && |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2114 | (CallICBase::StringStubState::decode(extra_state_) == |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2115 | DEFAULT_STRING_STUB)) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2116 | index_out_of_range_label = &miss; |
| 2117 | } |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2118 | GenerateNameCheck(name, &name_miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2119 | |
| 2120 | // Check that the maps starting from the prototype haven't changed. |
| 2121 | GenerateDirectLoadGlobalFunctionPrototype(masm(), |
| 2122 | Context::STRING_FUNCTION_INDEX, |
| 2123 | v0, |
| 2124 | &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2125 | ASSERT(!object.is_identical_to(holder)); |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2126 | CheckPrototypes( |
| 2127 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
| 2128 | v0, holder, a1, a3, t0, name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2129 | |
| 2130 | Register receiver = v0; |
| 2131 | Register index = t1; |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 2132 | Register scratch = a3; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2133 | Register result = v0; |
| 2134 | __ lw(receiver, MemOperand(sp, argc * kPointerSize)); |
| 2135 | if (argc > 0) { |
| 2136 | __ lw(index, MemOperand(sp, (argc - 1) * kPointerSize)); |
| 2137 | } else { |
| 2138 | __ LoadRoot(index, Heap::kUndefinedValueRootIndex); |
| 2139 | } |
| 2140 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2141 | StringCharAtGenerator generator(receiver, |
| 2142 | index, |
danno@chromium.org | c612e02 | 2011-11-10 11:38:15 +0000 | [diff] [blame] | 2143 | scratch, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2144 | result, |
| 2145 | &miss, // When not a string. |
| 2146 | &miss, // When not a number. |
| 2147 | index_out_of_range_label, |
| 2148 | STRING_INDEX_IS_NUMBER); |
| 2149 | generator.GenerateFast(masm()); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 2150 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2151 | |
| 2152 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2153 | generator.GenerateSlow(masm(), call_helper); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2154 | |
| 2155 | if (index_out_of_range.is_linked()) { |
| 2156 | __ bind(&index_out_of_range); |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2157 | __ LoadRoot(v0, Heap::kempty_stringRootIndex); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 2158 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2159 | } |
| 2160 | |
| 2161 | __ bind(&miss); |
| 2162 | // Restore function name in a2. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2163 | __ li(a2, name); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2164 | __ bind(&name_miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2165 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2166 | |
| 2167 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2168 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2169 | } |
| 2170 | |
| 2171 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2172 | Handle<Code> CallStubCompiler::CompileStringFromCharCodeCall( |
| 2173 | Handle<Object> object, |
| 2174 | Handle<JSObject> holder, |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 2175 | Handle<Cell> cell, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2176 | Handle<JSFunction> function, |
| 2177 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2178 | // ----------- S t a t e ------------- |
| 2179 | // -- a2 : function name |
| 2180 | // -- ra : return address |
| 2181 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2182 | // -- ... |
| 2183 | // -- sp[argc * 4] : receiver |
| 2184 | // ----------------------------------- |
| 2185 | |
| 2186 | const int argc = arguments().immediate(); |
| 2187 | |
| 2188 | // If the object is not a JSObject or we got an unexpected number of |
| 2189 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2190 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2191 | |
| 2192 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2193 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2194 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2195 | if (cell.is_null()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2196 | __ lw(a1, MemOperand(sp, 1 * kPointerSize)); |
| 2197 | |
| 2198 | STATIC_ASSERT(kSmiTag == 0); |
| 2199 | __ JumpIfSmi(a1, &miss); |
| 2200 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2201 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, v0, a3, t0, |
| 2202 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2203 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2204 | ASSERT(cell->value() == *function); |
| 2205 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 2206 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2207 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2208 | } |
| 2209 | |
| 2210 | // Load the char code argument. |
| 2211 | Register code = a1; |
| 2212 | __ lw(code, MemOperand(sp, 0 * kPointerSize)); |
| 2213 | |
| 2214 | // Check the code is a smi. |
| 2215 | Label slow; |
| 2216 | STATIC_ASSERT(kSmiTag == 0); |
| 2217 | __ JumpIfNotSmi(code, &slow); |
| 2218 | |
| 2219 | // Convert the smi code to uint16. |
| 2220 | __ And(code, code, Operand(Smi::FromInt(0xffff))); |
| 2221 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2222 | StringCharFromCodeGenerator generator(code, v0); |
| 2223 | generator.GenerateFast(masm()); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 2224 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2225 | |
| 2226 | StubRuntimeCallHelper call_helper; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2227 | generator.GenerateSlow(masm(), call_helper); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2228 | |
| 2229 | // Tail call the full function. We do not have to patch the receiver |
| 2230 | // because the function makes no use of it. |
| 2231 | __ bind(&slow); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2232 | ParameterCount expected(function); |
| 2233 | __ InvokeFunction(function, expected, arguments(), |
| 2234 | JUMP_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2235 | |
| 2236 | __ bind(&miss); |
| 2237 | // a2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2238 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2239 | |
| 2240 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2241 | return cell.is_null() ? GetCode(function) : GetCode(Code::NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2242 | } |
| 2243 | |
| 2244 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2245 | Handle<Code> CallStubCompiler::CompileMathFloorCall( |
| 2246 | Handle<Object> object, |
| 2247 | Handle<JSObject> holder, |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 2248 | Handle<Cell> cell, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2249 | Handle<JSFunction> function, |
| 2250 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2251 | // ----------- S t a t e ------------- |
| 2252 | // -- a2 : function name |
| 2253 | // -- ra : return address |
| 2254 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2255 | // -- ... |
| 2256 | // -- sp[argc * 4] : receiver |
| 2257 | // ----------------------------------- |
| 2258 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2259 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2260 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2261 | // If the object is not a JSObject or we got an unexpected number of |
| 2262 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2263 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2264 | |
| 2265 | Label miss, slow; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2266 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2267 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2268 | if (cell.is_null()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2269 | __ lw(a1, MemOperand(sp, 1 * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2270 | STATIC_ASSERT(kSmiTag == 0); |
| 2271 | __ JumpIfSmi(a1, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2272 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, a0, a3, t0, |
| 2273 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2274 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2275 | ASSERT(cell->value() == *function); |
| 2276 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 2277 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2278 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2279 | } |
| 2280 | |
| 2281 | // Load the (only) argument into v0. |
| 2282 | __ lw(v0, MemOperand(sp, 0 * kPointerSize)); |
| 2283 | |
| 2284 | // If the argument is a smi, just return. |
| 2285 | STATIC_ASSERT(kSmiTag == 0); |
| 2286 | __ And(t0, v0, Operand(kSmiTagMask)); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 2287 | __ DropAndRet(argc + 1, eq, t0, Operand(zero_reg)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2288 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2289 | __ CheckMap(v0, a1, Heap::kHeapNumberMapRootIndex, &slow, DONT_DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2290 | |
| 2291 | Label wont_fit_smi, no_fpu_error, restore_fcsr_and_return; |
| 2292 | |
| 2293 | // If fpu is enabled, we use the floor instruction. |
| 2294 | |
| 2295 | // Load the HeapNumber value. |
| 2296 | __ ldc1(f0, FieldMemOperand(v0, HeapNumber::kValueOffset)); |
| 2297 | |
| 2298 | // Backup FCSR. |
| 2299 | __ cfc1(a3, FCSR); |
| 2300 | // Clearing FCSR clears the exception mask with no side-effects. |
| 2301 | __ ctc1(zero_reg, FCSR); |
| 2302 | // Convert the argument to an integer. |
| 2303 | __ floor_w_d(f0, f0); |
| 2304 | |
| 2305 | // Start checking for special cases. |
| 2306 | // Get the argument exponent and clear the sign bit. |
| 2307 | __ lw(t1, FieldMemOperand(v0, HeapNumber::kValueOffset + kPointerSize)); |
| 2308 | __ And(t2, t1, Operand(~HeapNumber::kSignMask)); |
| 2309 | __ srl(t2, t2, HeapNumber::kMantissaBitsInTopWord); |
| 2310 | |
| 2311 | // Retrieve FCSR and check for fpu errors. |
| 2312 | __ cfc1(t5, FCSR); |
erik.corry@gmail.com | d6076d9 | 2011-06-06 09:39:18 +0000 | [diff] [blame] | 2313 | __ And(t5, t5, Operand(kFCSRExceptionFlagMask)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2314 | __ Branch(&no_fpu_error, eq, t5, Operand(zero_reg)); |
| 2315 | |
| 2316 | // Check for NaN, Infinity, and -Infinity. |
| 2317 | // They are invariant through a Math.Floor call, so just |
| 2318 | // return the original argument. |
| 2319 | __ Subu(t3, t2, Operand(HeapNumber::kExponentMask |
| 2320 | >> HeapNumber::kMantissaBitsInTopWord)); |
| 2321 | __ Branch(&restore_fcsr_and_return, eq, t3, Operand(zero_reg)); |
| 2322 | // We had an overflow or underflow in the conversion. Check if we |
| 2323 | // have a big exponent. |
| 2324 | // If greater or equal, the argument is already round and in v0. |
| 2325 | __ Branch(&restore_fcsr_and_return, ge, t3, |
| 2326 | Operand(HeapNumber::kMantissaBits)); |
| 2327 | __ Branch(&wont_fit_smi); |
| 2328 | |
| 2329 | __ bind(&no_fpu_error); |
| 2330 | // Move the result back to v0. |
| 2331 | __ mfc1(v0, f0); |
| 2332 | // Check if the result fits into a smi. |
| 2333 | __ Addu(a1, v0, Operand(0x40000000)); |
| 2334 | __ Branch(&wont_fit_smi, lt, a1, Operand(zero_reg)); |
| 2335 | // Tag the result. |
| 2336 | STATIC_ASSERT(kSmiTag == 0); |
| 2337 | __ sll(v0, v0, kSmiTagSize); |
| 2338 | |
| 2339 | // Check for -0. |
| 2340 | __ Branch(&restore_fcsr_and_return, ne, v0, Operand(zero_reg)); |
| 2341 | // t1 already holds the HeapNumber exponent. |
| 2342 | __ And(t0, t1, Operand(HeapNumber::kSignMask)); |
| 2343 | // If our HeapNumber is negative it was -0, so load its address and return. |
| 2344 | // Else v0 is loaded with 0, so we can also just return. |
| 2345 | __ Branch(&restore_fcsr_and_return, eq, t0, Operand(zero_reg)); |
| 2346 | __ lw(v0, MemOperand(sp, 0 * kPointerSize)); |
| 2347 | |
| 2348 | __ bind(&restore_fcsr_and_return); |
| 2349 | // Restore FCSR and return. |
| 2350 | __ ctc1(a3, FCSR); |
| 2351 | |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 2352 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2353 | |
| 2354 | __ bind(&wont_fit_smi); |
| 2355 | // Restore FCSR and fall to slow case. |
| 2356 | __ ctc1(a3, FCSR); |
| 2357 | |
| 2358 | __ bind(&slow); |
| 2359 | // Tail call the full function. We do not have to patch the receiver |
| 2360 | // because the function makes no use of it. |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2361 | ParameterCount expected(function); |
| 2362 | __ InvokeFunction(function, expected, arguments(), |
| 2363 | JUMP_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2364 | |
| 2365 | __ bind(&miss); |
| 2366 | // a2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2367 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2368 | |
| 2369 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2370 | return cell.is_null() ? GetCode(function) : GetCode(Code::NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2371 | } |
| 2372 | |
| 2373 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2374 | Handle<Code> CallStubCompiler::CompileMathAbsCall( |
| 2375 | Handle<Object> object, |
| 2376 | Handle<JSObject> holder, |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 2377 | Handle<Cell> cell, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2378 | Handle<JSFunction> function, |
| 2379 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2380 | // ----------- S t a t e ------------- |
| 2381 | // -- a2 : function name |
| 2382 | // -- ra : return address |
| 2383 | // -- sp[(argc - n - 1) * 4] : arg[n] (zero-based) |
| 2384 | // -- ... |
| 2385 | // -- sp[argc * 4] : receiver |
| 2386 | // ----------------------------------- |
| 2387 | |
| 2388 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2389 | // If the object is not a JSObject or we got an unexpected number of |
| 2390 | // arguments, bail out to the regular call. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2391 | if (!object->IsJSObject() || argc != 1) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2392 | |
| 2393 | Label miss; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2394 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2395 | GenerateNameCheck(name, &miss); |
| 2396 | if (cell.is_null()) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2397 | __ lw(a1, MemOperand(sp, 1 * kPointerSize)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2398 | STATIC_ASSERT(kSmiTag == 0); |
| 2399 | __ JumpIfSmi(a1, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2400 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, v0, a3, t0, |
| 2401 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2402 | } else { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2403 | ASSERT(cell->value() == *function); |
| 2404 | GenerateGlobalReceiverCheck(Handle<JSObject>::cast(object), holder, name, |
| 2405 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2406 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2407 | } |
| 2408 | |
| 2409 | // Load the (only) argument into v0. |
| 2410 | __ lw(v0, MemOperand(sp, 0 * kPointerSize)); |
| 2411 | |
| 2412 | // Check if the argument is a smi. |
| 2413 | Label not_smi; |
| 2414 | STATIC_ASSERT(kSmiTag == 0); |
| 2415 | __ JumpIfNotSmi(v0, ¬_smi); |
| 2416 | |
| 2417 | // Do bitwise not or do nothing depending on the sign of the |
| 2418 | // argument. |
| 2419 | __ sra(t0, v0, kBitsPerInt - 1); |
| 2420 | __ Xor(a1, v0, t0); |
| 2421 | |
| 2422 | // Add 1 or do nothing depending on the sign of the argument. |
| 2423 | __ Subu(v0, a1, t0); |
| 2424 | |
| 2425 | // If the result is still negative, go to the slow case. |
| 2426 | // This only happens for the most negative smi. |
| 2427 | Label slow; |
| 2428 | __ Branch(&slow, lt, v0, Operand(zero_reg)); |
| 2429 | |
| 2430 | // Smi case done. |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 2431 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2432 | |
| 2433 | // Check if the argument is a heap number and load its exponent and |
| 2434 | // sign. |
| 2435 | __ bind(¬_smi); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2436 | __ CheckMap(v0, a1, Heap::kHeapNumberMapRootIndex, &slow, DONT_DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2437 | __ lw(a1, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
| 2438 | |
| 2439 | // Check the sign of the argument. If the argument is positive, |
| 2440 | // just return it. |
| 2441 | Label negative_sign; |
| 2442 | __ And(t0, a1, Operand(HeapNumber::kSignMask)); |
| 2443 | __ Branch(&negative_sign, ne, t0, Operand(zero_reg)); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 2444 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2445 | |
| 2446 | // If the argument is negative, clear the sign, and return a new |
| 2447 | // number. |
| 2448 | __ bind(&negative_sign); |
| 2449 | __ Xor(a1, a1, Operand(HeapNumber::kSignMask)); |
| 2450 | __ lw(a3, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
| 2451 | __ LoadRoot(t2, Heap::kHeapNumberMapRootIndex); |
| 2452 | __ AllocateHeapNumber(v0, t0, t1, t2, &slow); |
| 2453 | __ sw(a1, FieldMemOperand(v0, HeapNumber::kExponentOffset)); |
| 2454 | __ sw(a3, FieldMemOperand(v0, HeapNumber::kMantissaOffset)); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 2455 | __ DropAndRet(argc + 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2456 | |
| 2457 | // Tail call the full function. We do not have to patch the receiver |
| 2458 | // because the function makes no use of it. |
| 2459 | __ bind(&slow); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2460 | ParameterCount expected(function); |
| 2461 | __ InvokeFunction(function, expected, arguments(), |
| 2462 | JUMP_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2463 | |
| 2464 | __ bind(&miss); |
| 2465 | // a2: function name. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2466 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2467 | |
| 2468 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2469 | return cell.is_null() ? GetCode(function) : GetCode(Code::NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2470 | } |
| 2471 | |
| 2472 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2473 | Handle<Code> CallStubCompiler::CompileFastApiCall( |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2474 | const CallOptimization& optimization, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2475 | Handle<Object> object, |
| 2476 | Handle<JSObject> holder, |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 2477 | Handle<Cell> cell, |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2478 | Handle<JSFunction> function, |
| 2479 | Handle<String> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2480 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2481 | Counters* counters = isolate()->counters(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2482 | |
| 2483 | ASSERT(optimization.is_simple_api_call()); |
| 2484 | // Bail out if object is a global object as we don't want to |
| 2485 | // repatch it to global receiver. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2486 | if (object->IsGlobalObject()) return Handle<Code>::null(); |
| 2487 | if (!cell.is_null()) return Handle<Code>::null(); |
| 2488 | if (!object->IsJSObject()) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2489 | int depth = optimization.GetPrototypeDepthOfExpectedType( |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2490 | Handle<JSObject>::cast(object), holder); |
| 2491 | if (depth == kInvalidProtoDepth) return Handle<Code>::null(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2492 | |
| 2493 | Label miss, miss_before_stack_reserved; |
| 2494 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2495 | GenerateNameCheck(name, &miss_before_stack_reserved); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2496 | |
| 2497 | // Get the receiver from the stack. |
| 2498 | const int argc = arguments().immediate(); |
| 2499 | __ lw(a1, MemOperand(sp, argc * kPointerSize)); |
| 2500 | |
| 2501 | // Check that the receiver isn't a smi. |
| 2502 | __ JumpIfSmi(a1, &miss_before_stack_reserved); |
| 2503 | |
| 2504 | __ IncrementCounter(counters->call_const(), 1, a0, a3); |
| 2505 | __ IncrementCounter(counters->call_const_fast_api(), 1, a0, a3); |
| 2506 | |
| 2507 | ReserveSpaceForFastApiCall(masm(), a0); |
| 2508 | |
| 2509 | // Check that the maps haven't changed and find a Holder as a side effect. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2510 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, a0, a3, t0, name, |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2511 | depth, &miss); |
| 2512 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2513 | GenerateFastApiDirectCall(masm(), optimization, argc); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2514 | |
| 2515 | __ bind(&miss); |
| 2516 | FreeSpaceForFastApiCall(masm()); |
| 2517 | |
| 2518 | __ bind(&miss_before_stack_reserved); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2519 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2520 | |
| 2521 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2522 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2523 | } |
| 2524 | |
| 2525 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2526 | void CallStubCompiler::CompileHandlerFrontend(Handle<Object> object, |
| 2527 | Handle<JSObject> holder, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2528 | Handle<Name> name, |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2529 | CheckType check, |
| 2530 | Label* success) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2531 | // ----------- S t a t e ------------- |
| 2532 | // -- a2 : name |
| 2533 | // -- ra : return address |
| 2534 | // ----------------------------------- |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2535 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2536 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2537 | |
| 2538 | // Get the receiver from the stack. |
| 2539 | const int argc = arguments().immediate(); |
| 2540 | __ lw(a1, MemOperand(sp, argc * kPointerSize)); |
| 2541 | |
| 2542 | // Check that the receiver isn't a smi. |
| 2543 | if (check != NUMBER_CHECK) { |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2544 | __ JumpIfSmi(a1, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2545 | } |
| 2546 | |
| 2547 | // Make sure that it's okay not to patch the on stack receiver |
| 2548 | // unless we're doing a receiver map check. |
| 2549 | ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2550 | switch (check) { |
| 2551 | case RECEIVER_MAP_CHECK: |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2552 | __ IncrementCounter(isolate()->counters()->call_const(), 1, a0, a3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2553 | |
| 2554 | // Check that the maps haven't changed. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2555 | CheckPrototypes(Handle<JSObject>::cast(object), a1, holder, a0, a3, t0, |
| 2556 | name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2557 | |
| 2558 | // Patch the receiver on the stack with the global proxy if |
| 2559 | // necessary. |
| 2560 | if (object->IsGlobalObject()) { |
| 2561 | __ lw(a3, FieldMemOperand(a1, GlobalObject::kGlobalReceiverOffset)); |
| 2562 | __ sw(a3, MemOperand(sp, argc * kPointerSize)); |
| 2563 | } |
| 2564 | break; |
| 2565 | |
| 2566 | case STRING_CHECK: |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 2567 | // Check that the object is a string. |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2568 | __ GetObjectType(a1, a3, a3); |
| 2569 | __ Branch(&miss, Ugreater_equal, a3, Operand(FIRST_NONSTRING_TYPE)); |
| 2570 | // Check that the maps starting from the prototype haven't changed. |
| 2571 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2572 | masm(), Context::STRING_FUNCTION_INDEX, a0, &miss); |
| 2573 | CheckPrototypes( |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2574 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2575 | a0, holder, a3, a1, t0, name, &miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2576 | break; |
| 2577 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2578 | case SYMBOL_CHECK: |
| 2579 | // Check that the object is a symbol. |
| 2580 | __ GetObjectType(a1, a1, a3); |
| 2581 | __ Branch(&miss, ne, a3, Operand(SYMBOL_TYPE)); |
mstarzinger@chromium.org | f705b50 | 2013-04-04 11:38:09 +0000 | [diff] [blame] | 2582 | // Check that the maps starting from the prototype haven't changed. |
| 2583 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2584 | masm(), Context::SYMBOL_FUNCTION_INDEX, a0, &miss); |
| 2585 | CheckPrototypes( |
| 2586 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
| 2587 | a0, holder, a3, a1, t0, name, &miss); |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2588 | break; |
| 2589 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2590 | case NUMBER_CHECK: { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2591 | Label fast; |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2592 | // Check that the object is a smi or a heap number. |
| 2593 | __ JumpIfSmi(a1, &fast); |
| 2594 | __ GetObjectType(a1, a0, a0); |
| 2595 | __ Branch(&miss, ne, a0, Operand(HEAP_NUMBER_TYPE)); |
| 2596 | __ bind(&fast); |
| 2597 | // Check that the maps starting from the prototype haven't changed. |
| 2598 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2599 | masm(), Context::NUMBER_FUNCTION_INDEX, a0, &miss); |
| 2600 | CheckPrototypes( |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2601 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2602 | a0, holder, a3, a1, t0, name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2603 | break; |
| 2604 | } |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2605 | case BOOLEAN_CHECK: { |
| 2606 | Label fast; |
| 2607 | // Check that the object is a boolean. |
| 2608 | __ LoadRoot(t0, Heap::kTrueValueRootIndex); |
| 2609 | __ Branch(&fast, eq, a1, Operand(t0)); |
| 2610 | __ LoadRoot(t0, Heap::kFalseValueRootIndex); |
| 2611 | __ Branch(&miss, ne, a1, Operand(t0)); |
| 2612 | __ bind(&fast); |
| 2613 | // Check that the maps starting from the prototype haven't changed. |
| 2614 | GenerateDirectLoadGlobalFunctionPrototype( |
| 2615 | masm(), Context::BOOLEAN_FUNCTION_INDEX, a0, &miss); |
| 2616 | CheckPrototypes( |
hpayer@chromium.org | 8432c91 | 2013-02-28 15:55:26 +0000 | [diff] [blame] | 2617 | Handle<JSObject>(JSObject::cast(object->GetPrototype(isolate()))), |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2618 | a0, holder, a3, a1, t0, name, &miss); |
| 2619 | break; |
| 2620 | } |
| 2621 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2622 | |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2623 | __ jmp(success); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2624 | |
| 2625 | // Handle call cache miss. |
| 2626 | __ bind(&miss); |
| 2627 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2628 | GenerateMissBranch(); |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2629 | } |
| 2630 | |
| 2631 | |
| 2632 | void CallStubCompiler::CompileHandlerBackend(Handle<JSFunction> function) { |
| 2633 | CallKind call_kind = CallICBase::Contextual::decode(extra_state_) |
| 2634 | ? CALL_AS_FUNCTION |
| 2635 | : CALL_AS_METHOD; |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2636 | ParameterCount expected(function); |
| 2637 | __ InvokeFunction(function, expected, arguments(), |
| 2638 | JUMP_FUNCTION, NullCallWrapper(), call_kind); |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2639 | } |
| 2640 | |
| 2641 | |
| 2642 | Handle<Code> CallStubCompiler::CompileCallConstant( |
| 2643 | Handle<Object> object, |
| 2644 | Handle<JSObject> holder, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2645 | Handle<Name> name, |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2646 | CheckType check, |
| 2647 | Handle<JSFunction> function) { |
| 2648 | if (HasCustomCallGenerator(function)) { |
| 2649 | Handle<Code> code = CompileCustomCall(object, holder, |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 2650 | Handle<Cell>::null(), |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2651 | function, Handle<String>::cast(name)); |
mmassi@chromium.org | 2f0efde | 2013-02-06 14:12:58 +0000 | [diff] [blame] | 2652 | // A null handle means bail out to the regular compiler code below. |
| 2653 | if (!code.is_null()) return code; |
| 2654 | } |
| 2655 | |
| 2656 | Label success; |
| 2657 | |
| 2658 | CompileHandlerFrontend(object, holder, name, check, &success); |
| 2659 | __ bind(&success); |
| 2660 | CompileHandlerBackend(function); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2661 | |
| 2662 | // Return the generated code. |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2663 | return GetCode(function); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2664 | } |
| 2665 | |
| 2666 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2667 | Handle<Code> CallStubCompiler::CompileCallInterceptor(Handle<JSObject> object, |
| 2668 | Handle<JSObject> holder, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2669 | Handle<Name> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2670 | // ----------- S t a t e ------------- |
| 2671 | // -- a2 : name |
| 2672 | // -- ra : return address |
| 2673 | // ----------------------------------- |
| 2674 | |
| 2675 | Label miss; |
| 2676 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2677 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2678 | |
| 2679 | // Get the number of arguments. |
| 2680 | const int argc = arguments().immediate(); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2681 | LookupResult lookup(isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2682 | LookupPostInterceptor(holder, name, &lookup); |
| 2683 | |
| 2684 | // Get the receiver from the stack. |
| 2685 | __ lw(a1, MemOperand(sp, argc * kPointerSize)); |
| 2686 | |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2687 | CallInterceptorCompiler compiler(this, arguments(), a2, extra_state_); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2688 | compiler.Compile(masm(), object, holder, name, &lookup, a1, a3, t0, a0, |
| 2689 | &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2690 | |
| 2691 | // Move returned value, the function to call, to a1. |
| 2692 | __ mov(a1, v0); |
| 2693 | // Restore receiver. |
| 2694 | __ lw(a0, MemOperand(sp, argc * kPointerSize)); |
| 2695 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2696 | GenerateCallFunction(masm(), object, arguments(), &miss, extra_state_); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2697 | |
| 2698 | // Handle call cache miss. |
| 2699 | __ bind(&miss); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2700 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2701 | |
| 2702 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2703 | return GetCode(Code::INTERCEPTOR, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2704 | } |
| 2705 | |
| 2706 | |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2707 | Handle<Code> CallStubCompiler::CompileCallGlobal( |
| 2708 | Handle<JSObject> object, |
| 2709 | Handle<GlobalObject> holder, |
| 2710 | Handle<JSGlobalPropertyCell> cell, |
| 2711 | Handle<JSFunction> function, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2712 | Handle<Name> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2713 | // ----------- S t a t e ------------- |
| 2714 | // -- a2 : name |
| 2715 | // -- ra : return address |
| 2716 | // ----------------------------------- |
| 2717 | |
| 2718 | if (HasCustomCallGenerator(function)) { |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2719 | Handle<Code> code = CompileCustomCall( |
| 2720 | object, holder, cell, function, Handle<String>::cast(name)); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2721 | // A null handle means bail out to the regular compiler code below. |
| 2722 | if (!code.is_null()) return code; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2723 | } |
| 2724 | |
| 2725 | Label miss; |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2726 | GenerateNameCheck(name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2727 | |
| 2728 | // Get the number of arguments. |
| 2729 | const int argc = arguments().immediate(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2730 | GenerateGlobalReceiverCheck(object, holder, name, &miss); |
| 2731 | GenerateLoadFunctionFromCell(cell, function, &miss); |
| 2732 | |
| 2733 | // Patch the receiver on the stack with the global proxy if |
| 2734 | // necessary. |
| 2735 | if (object->IsGlobalObject()) { |
| 2736 | __ lw(a3, FieldMemOperand(a0, GlobalObject::kGlobalReceiverOffset)); |
| 2737 | __ sw(a3, MemOperand(sp, argc * kPointerSize)); |
| 2738 | } |
| 2739 | |
erik.corry@gmail.com | f2038fb | 2012-01-16 11:42:08 +0000 | [diff] [blame] | 2740 | // Set up the context (function already in r1). |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2741 | __ lw(cp, FieldMemOperand(a1, JSFunction::kContextOffset)); |
| 2742 | |
| 2743 | // Jump to the cached code (tail call). |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2744 | Counters* counters = isolate()->counters(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2745 | __ IncrementCounter(counters->call_global_inline(), 1, a3, t0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2746 | ParameterCount expected(function->shared()->formal_parameter_count()); |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2747 | CallKind call_kind = CallICBase::Contextual::decode(extra_state_) |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 2748 | ? CALL_AS_FUNCTION |
| 2749 | : CALL_AS_METHOD; |
erik.corry@gmail.com | 394dbcf | 2011-10-27 07:38:48 +0000 | [diff] [blame] | 2750 | // We call indirectly through the code field in the function to |
| 2751 | // allow recompilation to take effect without changing any of the |
| 2752 | // call sites. |
| 2753 | __ lw(a3, FieldMemOperand(a1, JSFunction::kCodeEntryOffset)); |
| 2754 | __ InvokeCode(a3, expected, arguments(), JUMP_FUNCTION, |
| 2755 | NullCallWrapper(), call_kind); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2756 | |
| 2757 | // Handle call cache miss. |
| 2758 | __ bind(&miss); |
| 2759 | __ IncrementCounter(counters->call_global_inline_miss(), 1, a1, a3); |
jkummerow@chromium.org | c3b3712 | 2011-11-07 10:14:12 +0000 | [diff] [blame] | 2760 | GenerateMissBranch(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2761 | |
| 2762 | // Return the generated code. |
jkummerow@chromium.org | 7a6fc81 | 2012-06-27 11:12:38 +0000 | [diff] [blame] | 2763 | return GetCode(Code::NORMAL, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2764 | } |
| 2765 | |
| 2766 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2767 | Handle<Code> StoreStubCompiler::CompileStoreCallback( |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2768 | Handle<Name> name, |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2769 | Handle<JSObject> object, |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 2770 | Handle<JSObject> holder, |
yangguo@chromium.org | c03a192 | 2013-02-19 13:55:47 +0000 | [diff] [blame] | 2771 | Handle<ExecutableAccessorInfo> callback) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2772 | Label miss; |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 2773 | // Check that the maps haven't changed. |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2774 | __ JumpIfSmi(receiver(), &miss); |
| 2775 | CheckPrototypes(object, receiver(), holder, |
| 2776 | scratch1(), scratch2(), scratch3(), name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2777 | |
| 2778 | // Stub never generated for non-global objects that require access |
| 2779 | // checks. |
yangguo@chromium.org | 355cfd1 | 2012-08-29 15:32:24 +0000 | [diff] [blame] | 2780 | ASSERT(holder->IsJSGlobalProxy() || !holder->IsAccessCheckNeeded()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2781 | |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2782 | __ push(receiver()); // Receiver. |
| 2783 | __ li(at, Operand(callback)); // Callback info. |
| 2784 | __ Push(at, this->name(), value()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2785 | |
| 2786 | // Do tail-call to the runtime system. |
| 2787 | ExternalReference store_callback_property = |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2788 | ExternalReference(IC_Utility(IC::kStoreCallbackProperty), isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2789 | __ TailCallExternalReference(store_callback_property, 4, 1); |
| 2790 | |
| 2791 | // Handle store cache miss. |
| 2792 | __ bind(&miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2793 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2794 | |
| 2795 | // Return the generated code. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2796 | return GetICCode(kind(), Code::CALLBACKS, name); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 2797 | } |
| 2798 | |
| 2799 | |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2800 | #undef __ |
| 2801 | #define __ ACCESS_MASM(masm) |
| 2802 | |
| 2803 | |
| 2804 | void StoreStubCompiler::GenerateStoreViaSetter( |
| 2805 | MacroAssembler* masm, |
| 2806 | Handle<JSFunction> setter) { |
| 2807 | // ----------- S t a t e ------------- |
| 2808 | // -- a0 : value |
| 2809 | // -- a1 : receiver |
| 2810 | // -- a2 : name |
| 2811 | // -- ra : return address |
| 2812 | // ----------------------------------- |
| 2813 | { |
| 2814 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2815 | |
| 2816 | // Save value register, so we can restore it later. |
| 2817 | __ push(a0); |
| 2818 | |
| 2819 | if (!setter.is_null()) { |
| 2820 | // Call the JavaScript setter with receiver and value on the stack. |
| 2821 | __ push(a1); |
| 2822 | __ push(a0); |
| 2823 | ParameterCount actual(1); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2824 | ParameterCount expected(setter); |
| 2825 | __ InvokeFunction(setter, expected, actual, |
| 2826 | CALL_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
yangguo@chromium.org | 46839fb | 2012-08-28 09:06:19 +0000 | [diff] [blame] | 2827 | } else { |
| 2828 | // If we generate a global code snippet for deoptimization only, remember |
| 2829 | // the place to continue after deoptimization. |
| 2830 | masm->isolate()->heap()->SetSetterStubDeoptPCOffset(masm->pc_offset()); |
| 2831 | } |
| 2832 | |
| 2833 | // We have to return the passed value, not the return value of the setter. |
| 2834 | __ pop(v0); |
| 2835 | |
| 2836 | // Restore context register. |
| 2837 | __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 2838 | } |
| 2839 | __ Ret(); |
| 2840 | } |
| 2841 | |
| 2842 | |
| 2843 | #undef __ |
| 2844 | #define __ ACCESS_MASM(masm()) |
| 2845 | |
| 2846 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2847 | Handle<Code> StoreStubCompiler::CompileStoreInterceptor( |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2848 | Handle<JSObject> object, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2849 | Handle<Name> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2850 | Label miss; |
| 2851 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2852 | // Check that the map of the object hasn't changed. |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2853 | __ CheckMap(receiver(), scratch1(), Handle<Map>(object->map()), &miss, |
svenpanne@chromium.org | a53e8e0 | 2013-05-24 12:35:50 +0000 | [diff] [blame] | 2854 | DO_SMI_CHECK); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2855 | |
| 2856 | // Perform global security token check if needed. |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2857 | if (object->IsJSGlobalProxy()) { |
| 2858 | __ CheckAccessGlobalProxy(receiver(), scratch1(), &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2859 | } |
| 2860 | |
| 2861 | // Stub is never generated for non-global objects that require access |
| 2862 | // checks. |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2863 | ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2864 | |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2865 | __ Push(receiver(), this->name(), value()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2866 | |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2867 | __ li(scratch1(), Operand(Smi::FromInt(strict_mode()))); |
| 2868 | __ push(scratch1()); // strict mode |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2869 | |
| 2870 | // Do tail-call to the runtime system. |
| 2871 | ExternalReference store_ic_property = |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2872 | ExternalReference(IC_Utility(IC::kStoreInterceptorProperty), isolate()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2873 | __ TailCallExternalReference(store_ic_property, 4, 1); |
| 2874 | |
| 2875 | // Handle store cache miss. |
| 2876 | __ bind(&miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2877 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2878 | |
| 2879 | // Return the generated code. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2880 | return GetICCode(kind(), Code::INTERCEPTOR, name); |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 2881 | } |
| 2882 | |
| 2883 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 2884 | Handle<Code> StoreStubCompiler::CompileStoreGlobal( |
| 2885 | Handle<GlobalObject> object, |
| 2886 | Handle<JSGlobalPropertyCell> cell, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2887 | Handle<Name> name) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2888 | Label miss; |
| 2889 | |
| 2890 | // Check that the map of the global has not changed. |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2891 | __ lw(scratch1(), FieldMemOperand(receiver(), HeapObject::kMapOffset)); |
| 2892 | __ Branch(&miss, ne, scratch1(), Operand(Handle<Map>(object->map()))); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2893 | |
| 2894 | // Check that the value in the cell is not the hole. If it is, this |
| 2895 | // cell could have been deleted and reintroducing the global needs |
| 2896 | // to update the property details in the property dictionary of the |
| 2897 | // global object. We bail out to the runtime system to do that. |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2898 | __ li(scratch1(), Operand(cell)); |
| 2899 | __ LoadRoot(scratch2(), Heap::kTheHoleValueRootIndex); |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 2900 | __ lw(scratch3(), FieldMemOperand(scratch1(), Cell::kValueOffset)); |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2901 | __ Branch(&miss, eq, scratch3(), Operand(scratch2())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2902 | |
| 2903 | // Store the value in the cell. |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 2904 | __ sw(value(), FieldMemOperand(scratch1(), Cell::kValueOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2905 | __ mov(v0, a0); // Stored value must be returned in v0. |
ricow@chromium.org | 64e3a4b | 2011-12-13 08:07:27 +0000 | [diff] [blame] | 2906 | // Cells are always rescanned, so no write barrier here. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 2907 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 2908 | Counters* counters = isolate()->counters(); |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2909 | __ IncrementCounter( |
| 2910 | counters->named_store_global_inline(), 1, scratch1(), scratch2()); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2911 | __ Ret(); |
| 2912 | |
| 2913 | // Handle store cache miss. |
| 2914 | __ bind(&miss); |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 2915 | __ IncrementCounter( |
| 2916 | counters->named_store_global_inline_miss(), 1, scratch1(), scratch2()); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2917 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2918 | |
| 2919 | // Return the generated code. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2920 | return GetICCode(kind(), Code::NORMAL, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2921 | } |
| 2922 | |
| 2923 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2924 | Handle<Code> LoadStubCompiler::CompileLoadNonexistent( |
| 2925 | Handle<JSObject> object, |
| 2926 | Handle<JSObject> last, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2927 | Handle<Name> name, |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2928 | Handle<GlobalObject> global) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2929 | Label success; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2930 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2931 | NonexistentHandlerFrontend(object, last, name, &success, global); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2932 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 2933 | __ bind(&success); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2934 | // Return undefined if maps of the full prototype chain is still the same. |
| 2935 | __ LoadRoot(v0, Heap::kUndefinedValueRootIndex); |
| 2936 | __ Ret(); |
| 2937 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2938 | // Return the generated code. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2939 | return GetCode(kind(), Code::NONEXISTENT, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2940 | } |
| 2941 | |
| 2942 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2943 | Register* LoadStubCompiler::registers() { |
| 2944 | // receiver, name, scratch1, scratch2, scratch3, scratch4. |
| 2945 | static Register registers[] = { a0, a2, a3, a1, t0, t1 }; |
| 2946 | return registers; |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2947 | } |
| 2948 | |
| 2949 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2950 | Register* KeyedLoadStubCompiler::registers() { |
| 2951 | // receiver, name, scratch1, scratch2, scratch3, scratch4. |
| 2952 | static Register registers[] = { a1, a0, a2, a3, t0, t1 }; |
| 2953 | return registers; |
| 2954 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 2955 | |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2956 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2957 | Register* StoreStubCompiler::registers() { |
| 2958 | // receiver, name, value, scratch1, scratch2, scratch3. |
| 2959 | static Register registers[] = { a1, a2, a0, a3, t0, t1 }; |
| 2960 | return registers; |
| 2961 | } |
| 2962 | |
| 2963 | |
| 2964 | Register* KeyedStoreStubCompiler::registers() { |
| 2965 | // receiver, name, value, scratch1, scratch2, scratch3. |
| 2966 | static Register registers[] = { a2, a1, a0, a3, t0, t1 }; |
| 2967 | return registers; |
| 2968 | } |
| 2969 | |
| 2970 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 2971 | void KeyedLoadStubCompiler::GenerateNameCheck(Handle<Name> name, |
danno@chromium.org | 94b0d6f | 2013-02-04 13:33:20 +0000 | [diff] [blame] | 2972 | Register name_reg, |
| 2973 | Label* miss) { |
| 2974 | __ Branch(miss, ne, name_reg, Operand(name)); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 2975 | } |
| 2976 | |
| 2977 | |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 2978 | void KeyedStoreStubCompiler::GenerateNameCheck(Handle<Name> name, |
| 2979 | Register name_reg, |
| 2980 | Label* miss) { |
| 2981 | __ Branch(miss, ne, name_reg, Operand(name)); |
| 2982 | } |
| 2983 | |
| 2984 | |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 2985 | #undef __ |
| 2986 | #define __ ACCESS_MASM(masm) |
| 2987 | |
| 2988 | |
| 2989 | void LoadStubCompiler::GenerateLoadViaGetter(MacroAssembler* masm, |
| 2990 | Handle<JSFunction> getter) { |
| 2991 | // ----------- S t a t e ------------- |
| 2992 | // -- a0 : receiver |
| 2993 | // -- a2 : name |
| 2994 | // -- ra : return address |
| 2995 | // ----------------------------------- |
| 2996 | { |
| 2997 | FrameScope scope(masm, StackFrame::INTERNAL); |
| 2998 | |
| 2999 | if (!getter.is_null()) { |
| 3000 | // Call the JavaScript getter with the receiver on the stack. |
| 3001 | __ push(a0); |
| 3002 | ParameterCount actual(0); |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3003 | ParameterCount expected(getter); |
| 3004 | __ InvokeFunction(getter, expected, actual, |
| 3005 | CALL_FUNCTION, NullCallWrapper(), CALL_AS_METHOD); |
mstarzinger@chromium.org | de88679 | 2012-09-11 13:22:37 +0000 | [diff] [blame] | 3006 | } else { |
| 3007 | // If we generate a global code snippet for deoptimization only, remember |
| 3008 | // the place to continue after deoptimization. |
| 3009 | masm->isolate()->heap()->SetGetterStubDeoptPCOffset(masm->pc_offset()); |
| 3010 | } |
| 3011 | |
| 3012 | // Restore context register. |
| 3013 | __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
| 3014 | } |
| 3015 | __ Ret(); |
| 3016 | } |
| 3017 | |
| 3018 | |
| 3019 | #undef __ |
| 3020 | #define __ ACCESS_MASM(masm()) |
| 3021 | |
| 3022 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3023 | Handle<Code> LoadStubCompiler::CompileLoadGlobal( |
| 3024 | Handle<JSObject> object, |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3025 | Handle<GlobalObject> global, |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3026 | Handle<JSGlobalPropertyCell> cell, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3027 | Handle<Name> name, |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3028 | bool is_dont_delete) { |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3029 | Label success, miss; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3030 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3031 | __ CheckMap( |
| 3032 | receiver(), scratch1(), Handle<Map>(object->map()), &miss, DO_SMI_CHECK); |
| 3033 | HandlerFrontendHeader( |
| 3034 | object, receiver(), Handle<JSObject>::cast(global), name, &miss); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3035 | |
| 3036 | // Get the value from the cell. |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3037 | __ li(a3, Operand(cell)); |
danno@chromium.org | f95d4b9 | 2013-06-13 14:40:17 +0000 | [diff] [blame^] | 3038 | __ lw(t0, FieldMemOperand(a3, Cell::kValueOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3039 | |
| 3040 | // Check for deleted property if property can actually be deleted. |
| 3041 | if (!is_dont_delete) { |
| 3042 | __ LoadRoot(at, Heap::kTheHoleValueRootIndex); |
| 3043 | __ Branch(&miss, eq, t0, Operand(at)); |
| 3044 | } |
| 3045 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3046 | HandlerFrontendFooter(&success, &miss); |
| 3047 | __ bind(&success); |
| 3048 | |
ulan@chromium.org | 32d7dba | 2013-04-24 10:59:06 +0000 | [diff] [blame] | 3049 | Counters* counters = isolate()->counters(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3050 | __ IncrementCounter(counters->named_load_global_stub(), 1, a1, a3); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 3051 | __ Ret(USE_DELAY_SLOT); |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3052 | __ mov(v0, t0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3053 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3054 | // Return the generated code. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3055 | return GetICCode(kind(), Code::NORMAL, name); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3056 | } |
| 3057 | |
| 3058 | |
yangguo@chromium.org | 4a9f655 | 2013-03-04 14:46:33 +0000 | [diff] [blame] | 3059 | Handle<Code> BaseLoadStubCompiler::CompilePolymorphicIC( |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3060 | MapHandleList* receiver_maps, |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3061 | CodeHandleList* handlers, |
| 3062 | Handle<Name> name, |
| 3063 | Code::StubType type, |
| 3064 | IcCheckType check) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3065 | Label miss; |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3066 | |
| 3067 | if (check == PROPERTY) { |
| 3068 | GenerateNameCheck(name, this->name(), &miss); |
| 3069 | } |
| 3070 | |
| 3071 | __ JumpIfSmi(receiver(), &miss); |
| 3072 | Register map_reg = scratch1(); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3073 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3074 | int receiver_count = receiver_maps->length(); |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3075 | int number_of_handled_maps = 0; |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3076 | __ lw(map_reg, FieldMemOperand(receiver(), HeapObject::kMapOffset)); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3077 | for (int current = 0; current < receiver_count; ++current) { |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3078 | Handle<Map> map = receiver_maps->at(current); |
| 3079 | if (!map->is_deprecated()) { |
| 3080 | number_of_handled_maps++; |
| 3081 | __ Jump(handlers->at(current), RelocInfo::CODE_TARGET, |
| 3082 | eq, map_reg, Operand(receiver_maps->at(current))); |
| 3083 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3084 | } |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3085 | ASSERT(number_of_handled_maps != 0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3086 | |
| 3087 | __ bind(&miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3088 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3089 | |
| 3090 | // Return the generated code. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3091 | InlineCacheState state = |
danno@chromium.org | f005df6 | 2013-04-30 16:36:45 +0000 | [diff] [blame] | 3092 | number_of_handled_maps > 1 ? POLYMORPHIC : MONOMORPHIC; |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3093 | return GetICCode(kind(), type, name, state); |
lrn@chromium.org | 7516f05 | 2011-03-30 08:52:27 +0000 | [diff] [blame] | 3094 | } |
| 3095 | |
| 3096 | |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3097 | Handle<Code> KeyedStoreStubCompiler::CompileStorePolymorphic( |
| 3098 | MapHandleList* receiver_maps, |
| 3099 | CodeHandleList* handler_stubs, |
| 3100 | MapHandleList* transitioned_maps) { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3101 | Label miss; |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 3102 | __ JumpIfSmi(receiver(), &miss); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3103 | |
| 3104 | int receiver_count = receiver_maps->length(); |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 3105 | __ lw(scratch1(), FieldMemOperand(receiver(), HeapObject::kMapOffset)); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3106 | for (int i = 0; i < receiver_count; ++i) { |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3107 | if (transitioned_maps->at(i).is_null()) { |
| 3108 | __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, eq, |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 3109 | scratch1(), Operand(receiver_maps->at(i))); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3110 | } else { |
| 3111 | Label next_map; |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 3112 | __ Branch(&next_map, ne, scratch1(), Operand(receiver_maps->at(i))); |
| 3113 | __ li(transition_map(), Operand(transitioned_maps->at(i))); |
erik.corry@gmail.com | 6e28b56 | 2011-10-27 14:20:17 +0000 | [diff] [blame] | 3114 | __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3115 | __ bind(&next_map); |
| 3116 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3117 | } |
| 3118 | |
| 3119 | __ bind(&miss); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3120 | TailCallBuiltin(masm(), MissBuiltin(kind())); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3121 | |
| 3122 | // Return the generated code. |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3123 | return GetICCode( |
| 3124 | kind(), Code::NORMAL, factory()->empty_string(), POLYMORPHIC); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3125 | } |
| 3126 | |
| 3127 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3128 | #undef __ |
| 3129 | #define __ ACCESS_MASM(masm) |
| 3130 | |
| 3131 | |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 3132 | void KeyedLoadStubCompiler::GenerateLoadDictionaryElement( |
| 3133 | MacroAssembler* masm) { |
| 3134 | // ---------- S t a t e -------------- |
| 3135 | // -- ra : return address |
| 3136 | // -- a0 : key |
| 3137 | // -- a1 : receiver |
| 3138 | // ----------------------------------- |
| 3139 | Label slow, miss_force_generic; |
| 3140 | |
| 3141 | Register key = a0; |
| 3142 | Register receiver = a1; |
| 3143 | |
| 3144 | __ JumpIfNotSmi(key, &miss_force_generic); |
| 3145 | __ lw(t0, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 3146 | __ sra(a2, a0, kSmiTagSize); |
| 3147 | __ LoadFromNumberDictionary(&slow, t0, a0, v0, a2, a3, t1); |
| 3148 | __ Ret(); |
| 3149 | |
| 3150 | // Slow case, key and receiver still in a0 and a1. |
| 3151 | __ bind(&slow); |
| 3152 | __ IncrementCounter( |
| 3153 | masm->isolate()->counters()->keyed_load_external_array_slow(), |
| 3154 | 1, a2, a3); |
| 3155 | // Entry registers are intact. |
| 3156 | // ---------- S t a t e -------------- |
| 3157 | // -- ra : return address |
| 3158 | // -- a0 : key |
| 3159 | // -- a1 : receiver |
| 3160 | // ----------------------------------- |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3161 | TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Slow); |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 3162 | |
| 3163 | // Miss case, call the runtime. |
| 3164 | __ bind(&miss_force_generic); |
| 3165 | |
| 3166 | // ---------- S t a t e -------------- |
| 3167 | // -- ra : return address |
| 3168 | // -- a0 : key |
| 3169 | // -- a1 : receiver |
| 3170 | // ----------------------------------- |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3171 | TailCallBuiltin(masm, Builtins::kKeyedLoadIC_MissForceGeneric); |
sgjesse@chromium.org | 6db8871 | 2011-07-11 11:41:22 +0000 | [diff] [blame] | 3172 | } |
| 3173 | |
| 3174 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3175 | static void GenerateSmiKeyCheck(MacroAssembler* masm, |
| 3176 | Register key, |
| 3177 | Register scratch0, |
| 3178 | Register scratch1, |
| 3179 | FPURegister double_scratch0, |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3180 | FPURegister double_scratch1, |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3181 | Label* fail) { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3182 | Label key_ok; |
| 3183 | // Check for smi or a smi inside a heap number. We convert the heap |
| 3184 | // number and check if the conversion is exact and fits into the smi |
| 3185 | // range. |
| 3186 | __ JumpIfSmi(key, &key_ok); |
| 3187 | __ CheckMap(key, |
| 3188 | scratch0, |
| 3189 | Heap::kHeapNumberMapRootIndex, |
| 3190 | fail, |
| 3191 | DONT_DO_SMI_CHECK); |
| 3192 | __ ldc1(double_scratch0, FieldMemOperand(key, HeapNumber::kValueOffset)); |
| 3193 | __ EmitFPUTruncate(kRoundToZero, |
| 3194 | scratch0, |
| 3195 | double_scratch0, |
| 3196 | at, |
| 3197 | double_scratch1, |
| 3198 | scratch1, |
| 3199 | kCheckForInexactConversion); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3200 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3201 | __ Branch(fail, ne, scratch1, Operand(zero_reg)); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3202 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3203 | __ SmiTagCheckOverflow(key, scratch0, scratch1); |
| 3204 | __ BranchOnOverflow(fail, scratch1); |
| 3205 | __ bind(&key_ok); |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3206 | } |
| 3207 | |
| 3208 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3209 | void KeyedStoreStubCompiler::GenerateStoreExternalArray( |
| 3210 | MacroAssembler* masm, |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3211 | ElementsKind elements_kind) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3212 | // ---------- S t a t e -------------- |
| 3213 | // -- a0 : value |
| 3214 | // -- a1 : key |
| 3215 | // -- a2 : receiver |
| 3216 | // -- ra : return address |
| 3217 | // ----------------------------------- |
| 3218 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3219 | Label slow, check_heap_number, miss_force_generic; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3220 | |
| 3221 | // Register usage. |
| 3222 | Register value = a0; |
| 3223 | Register key = a1; |
| 3224 | Register receiver = a2; |
| 3225 | // a3 mostly holds the elements array or the destination external array. |
| 3226 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3227 | // This stub is meant to be tail-jumped to, the receiver must already |
| 3228 | // have been verified by the caller to not be a smi. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3229 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3230 | // Check that the key is a smi or a heap number convertible to a smi. |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3231 | GenerateSmiKeyCheck(masm, key, t0, t1, f2, f4, &miss_force_generic); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3232 | |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3233 | __ lw(a3, FieldMemOperand(receiver, JSObject::kElementsOffset)); |
| 3234 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3235 | // Check that the index is in range. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3236 | __ lw(t1, FieldMemOperand(a3, ExternalArray::kLengthOffset)); |
| 3237 | // Unsigned comparison catches both negative and too-large values. |
whesse@chromium.org | 4acdc2c | 2011-08-15 13:01:23 +0000 | [diff] [blame] | 3238 | __ Branch(&miss_force_generic, Ugreater_equal, key, Operand(t1)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3239 | |
| 3240 | // Handle both smis and HeapNumbers in the fast path. Go to the |
| 3241 | // runtime for all other kinds of values. |
| 3242 | // a3: external array. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3243 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3244 | if (elements_kind == EXTERNAL_PIXEL_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3245 | // Double to pixel conversion is only implemented in the runtime for now. |
| 3246 | __ JumpIfNotSmi(value, &slow); |
| 3247 | } else { |
| 3248 | __ JumpIfNotSmi(value, &check_heap_number); |
| 3249 | } |
| 3250 | __ SmiUntag(t1, value); |
| 3251 | __ lw(a3, FieldMemOperand(a3, ExternalArray::kExternalPointerOffset)); |
| 3252 | |
| 3253 | // a3: base pointer of external storage. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3254 | // t1: value (integer). |
| 3255 | |
svenpanne@chromium.org | 6d786c9 | 2011-06-15 10:58:27 +0000 | [diff] [blame] | 3256 | switch (elements_kind) { |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3257 | case EXTERNAL_PIXEL_ELEMENTS: { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3258 | // Clamp the value to [0..255]. |
| 3259 | // v0 is used as a scratch register here. |
| 3260 | Label done; |
| 3261 | __ li(v0, Operand(255)); |
| 3262 | // Normal branch: nop in delay slot. |
| 3263 | __ Branch(&done, gt, t1, Operand(v0)); |
| 3264 | // Use delay slot in this branch. |
| 3265 | __ Branch(USE_DELAY_SLOT, &done, lt, t1, Operand(zero_reg)); |
| 3266 | __ mov(v0, zero_reg); // In delay slot. |
| 3267 | __ mov(v0, t1); // Value is in range 0..255. |
| 3268 | __ bind(&done); |
| 3269 | __ mov(t1, v0); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3270 | |
| 3271 | __ srl(t8, key, 1); |
| 3272 | __ addu(t8, a3, t8); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3273 | __ sb(t1, MemOperand(t8, 0)); |
| 3274 | } |
| 3275 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3276 | case EXTERNAL_BYTE_ELEMENTS: |
| 3277 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3278 | __ srl(t8, key, 1); |
| 3279 | __ addu(t8, a3, t8); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3280 | __ sb(t1, MemOperand(t8, 0)); |
| 3281 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3282 | case EXTERNAL_SHORT_ELEMENTS: |
| 3283 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3284 | __ addu(t8, a3, key); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3285 | __ sh(t1, MemOperand(t8, 0)); |
| 3286 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3287 | case EXTERNAL_INT_ELEMENTS: |
| 3288 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3289 | __ sll(t8, key, 1); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3290 | __ addu(t8, a3, t8); |
| 3291 | __ sw(t1, MemOperand(t8, 0)); |
| 3292 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3293 | case EXTERNAL_FLOAT_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3294 | // Perform int-to-float conversion and store to memory. |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3295 | __ SmiUntag(t0, key); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3296 | StoreIntAsFloat(masm, a3, t0, t1, t2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3297 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3298 | case EXTERNAL_DOUBLE_ELEMENTS: |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3299 | __ sll(t8, key, 2); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3300 | __ addu(a3, a3, t8); |
| 3301 | // a3: effective address of the double element |
| 3302 | FloatingPointHelper::Destination destination; |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3303 | destination = FloatingPointHelper::kFPURegisters; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3304 | FloatingPointHelper::ConvertIntToDouble( |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3305 | masm, t1, destination, |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3306 | f0, t2, t3, // These are: double_dst, dst_mantissa, dst_exponent. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3307 | t0, f2); // These are: scratch2, single_scratch. |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3308 | __ sdc1(f0, MemOperand(a3, 0)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3309 | break; |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3310 | case FAST_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3311 | case FAST_SMI_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3312 | case FAST_DOUBLE_ELEMENTS: |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3313 | case FAST_HOLEY_ELEMENTS: |
| 3314 | case FAST_HOLEY_SMI_ELEMENTS: |
| 3315 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3316 | case DICTIONARY_ELEMENTS: |
| 3317 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3318 | UNREACHABLE(); |
| 3319 | break; |
| 3320 | } |
| 3321 | |
| 3322 | // Entry registers are intact, a0 holds the value which is the return value. |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 3323 | __ Ret(USE_DELAY_SLOT); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 3324 | __ mov(v0, a0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3325 | |
kmillikin@chromium.org | 83e1682 | 2011-09-13 08:21:47 +0000 | [diff] [blame] | 3326 | if (elements_kind != EXTERNAL_PIXEL_ELEMENTS) { |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3327 | // a3: external array. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3328 | __ bind(&check_heap_number); |
| 3329 | __ GetObjectType(value, t1, t2); |
| 3330 | __ Branch(&slow, ne, t2, Operand(HEAP_NUMBER_TYPE)); |
| 3331 | |
| 3332 | __ lw(a3, FieldMemOperand(a3, ExternalArray::kExternalPointerOffset)); |
| 3333 | |
| 3334 | // a3: base pointer of external storage. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3335 | |
| 3336 | // The WebGL specification leaves the behavior of storing NaN and |
| 3337 | // +/-Infinity into integer arrays basically undefined. For more |
| 3338 | // reproducible behavior, convert these to zero. |
| 3339 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3340 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3341 | __ ldc1(f0, FieldMemOperand(a0, HeapNumber::kValueOffset)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3342 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3343 | if (elements_kind == EXTERNAL_FLOAT_ELEMENTS) { |
| 3344 | __ cvt_s_d(f0, f0); |
| 3345 | __ sll(t8, key, 1); |
| 3346 | __ addu(t8, a3, t8); |
| 3347 | __ swc1(f0, MemOperand(t8, 0)); |
| 3348 | } else if (elements_kind == EXTERNAL_DOUBLE_ELEMENTS) { |
| 3349 | __ sll(t8, key, 2); |
| 3350 | __ addu(t8, a3, t8); |
| 3351 | __ sdc1(f0, MemOperand(t8, 0)); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3352 | } else { |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3353 | __ EmitECMATruncate(t3, f0, f2, t2, t1, t5); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3354 | |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3355 | switch (elements_kind) { |
| 3356 | case EXTERNAL_BYTE_ELEMENTS: |
| 3357 | case EXTERNAL_UNSIGNED_BYTE_ELEMENTS: |
| 3358 | __ srl(t8, key, 1); |
| 3359 | __ addu(t8, a3, t8); |
| 3360 | __ sb(t3, MemOperand(t8, 0)); |
| 3361 | break; |
| 3362 | case EXTERNAL_SHORT_ELEMENTS: |
| 3363 | case EXTERNAL_UNSIGNED_SHORT_ELEMENTS: |
| 3364 | __ addu(t8, a3, key); |
| 3365 | __ sh(t3, MemOperand(t8, 0)); |
| 3366 | break; |
| 3367 | case EXTERNAL_INT_ELEMENTS: |
| 3368 | case EXTERNAL_UNSIGNED_INT_ELEMENTS: |
| 3369 | __ sll(t8, key, 1); |
| 3370 | __ addu(t8, a3, t8); |
| 3371 | __ sw(t3, MemOperand(t8, 0)); |
| 3372 | break; |
| 3373 | case EXTERNAL_PIXEL_ELEMENTS: |
| 3374 | case EXTERNAL_FLOAT_ELEMENTS: |
| 3375 | case EXTERNAL_DOUBLE_ELEMENTS: |
| 3376 | case FAST_ELEMENTS: |
| 3377 | case FAST_SMI_ELEMENTS: |
| 3378 | case FAST_DOUBLE_ELEMENTS: |
| 3379 | case FAST_HOLEY_ELEMENTS: |
| 3380 | case FAST_HOLEY_SMI_ELEMENTS: |
| 3381 | case FAST_HOLEY_DOUBLE_ELEMENTS: |
| 3382 | case DICTIONARY_ELEMENTS: |
| 3383 | case NON_STRICT_ARGUMENTS_ELEMENTS: |
| 3384 | UNREACHABLE(); |
| 3385 | break; |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3386 | } |
| 3387 | } |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3388 | |
| 3389 | // Entry registers are intact, a0 holds the value |
| 3390 | // which is the return value. |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 3391 | __ Ret(USE_DELAY_SLOT); |
mstarzinger@chromium.org | e27d617 | 2013-04-17 11:51:44 +0000 | [diff] [blame] | 3392 | __ mov(v0, a0); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3393 | } |
| 3394 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3395 | // Slow case, key and receiver still in a0 and a1. |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3396 | __ bind(&slow); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3397 | __ IncrementCounter( |
| 3398 | masm->isolate()->counters()->keyed_load_external_array_slow(), |
| 3399 | 1, a2, a3); |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3400 | // Entry registers are intact. |
| 3401 | // ---------- S t a t e -------------- |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3402 | // -- ra : return address |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3403 | // -- a0 : key |
| 3404 | // -- a1 : receiver |
| 3405 | // ----------------------------------- |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3406 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3407 | |
| 3408 | // Miss case, call the runtime. |
| 3409 | __ bind(&miss_force_generic); |
| 3410 | |
| 3411 | // ---------- S t a t e -------------- |
| 3412 | // -- ra : return address |
| 3413 | // -- a0 : key |
| 3414 | // -- a1 : receiver |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3415 | // ----------------------------------- |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3416 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3417 | } |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3418 | |
kmillikin@chromium.org | c53e10d | 2011-05-18 09:12:58 +0000 | [diff] [blame] | 3419 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3420 | void KeyedStoreStubCompiler::GenerateStoreFastElement( |
| 3421 | MacroAssembler* masm, |
| 3422 | bool is_js_array, |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3423 | ElementsKind elements_kind, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3424 | KeyedAccessStoreMode store_mode) { |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3425 | // ----------- S t a t e ------------- |
| 3426 | // -- a0 : value |
| 3427 | // -- a1 : key |
| 3428 | // -- a2 : receiver |
| 3429 | // -- ra : return address |
| 3430 | // -- a3 : scratch |
| 3431 | // -- a4 : scratch (elements) |
| 3432 | // ----------------------------------- |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3433 | Label miss_force_generic, transition_elements_kind, grow, slow; |
| 3434 | Label finish_store, check_capacity; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3435 | |
| 3436 | Register value_reg = a0; |
| 3437 | Register key_reg = a1; |
| 3438 | Register receiver_reg = a2; |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3439 | Register scratch = t0; |
| 3440 | Register elements_reg = a3; |
| 3441 | Register length_reg = t1; |
| 3442 | Register scratch2 = t2; |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3443 | |
| 3444 | // This stub is meant to be tail-jumped to, the receiver must already |
| 3445 | // have been verified by the caller to not be a smi. |
| 3446 | |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3447 | // Check that the key is a smi or a heap number convertible to a smi. |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3448 | GenerateSmiKeyCheck(masm, key_reg, t0, t1, f2, f4, &miss_force_generic); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3449 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3450 | if (IsFastSmiElementsKind(elements_kind)) { |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3451 | __ JumpIfNotSmi(value_reg, &transition_elements_kind); |
| 3452 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3453 | |
| 3454 | // Check that the key is within bounds. |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3455 | __ lw(elements_reg, |
| 3456 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3457 | if (is_js_array) { |
| 3458 | __ lw(scratch, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3459 | } else { |
| 3460 | __ lw(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 3461 | } |
| 3462 | // Compare smis. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3463 | if (is_js_array && IsGrowStoreMode(store_mode)) { |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3464 | __ Branch(&grow, hs, key_reg, Operand(scratch)); |
| 3465 | } else { |
| 3466 | __ Branch(&miss_force_generic, hs, key_reg, Operand(scratch)); |
| 3467 | } |
| 3468 | |
| 3469 | // Make sure elements is a fast element array, not 'cow'. |
| 3470 | __ CheckMap(elements_reg, |
| 3471 | scratch, |
| 3472 | Heap::kFixedArrayMapRootIndex, |
| 3473 | &miss_force_generic, |
| 3474 | DONT_DO_SMI_CHECK); |
| 3475 | |
| 3476 | __ bind(&finish_store); |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3477 | |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3478 | if (IsFastSmiElementsKind(elements_kind)) { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3479 | __ Addu(scratch, |
| 3480 | elements_reg, |
| 3481 | Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 3482 | STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
| 3483 | __ sll(scratch2, key_reg, kPointerSizeLog2 - kSmiTagSize); |
| 3484 | __ Addu(scratch, scratch, scratch2); |
| 3485 | __ sw(value_reg, MemOperand(scratch)); |
| 3486 | } else { |
svenpanne@chromium.org | 830d30c | 2012-05-29 13:20:14 +0000 | [diff] [blame] | 3487 | ASSERT(IsFastObjectElementsKind(elements_kind)); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3488 | __ Addu(scratch, |
| 3489 | elements_reg, |
| 3490 | Operand(FixedArray::kHeaderSize - kHeapObjectTag)); |
| 3491 | STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2); |
| 3492 | __ sll(scratch2, key_reg, kPointerSizeLog2 - kSmiTagSize); |
| 3493 | __ Addu(scratch, scratch, scratch2); |
| 3494 | __ sw(value_reg, MemOperand(scratch)); |
| 3495 | __ mov(receiver_reg, value_reg); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3496 | __ RecordWrite(elements_reg, // Object. |
| 3497 | scratch, // Address. |
| 3498 | receiver_reg, // Value. |
| 3499 | kRAHasNotBeenSaved, |
| 3500 | kDontSaveFPRegs); |
| 3501 | } |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 3502 | // value_reg (a0) is preserved. |
| 3503 | // Done. |
| 3504 | __ Ret(); |
| 3505 | |
| 3506 | __ bind(&miss_force_generic); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3507 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3508 | |
| 3509 | __ bind(&transition_elements_kind); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3510 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Miss); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3511 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3512 | if (is_js_array && IsGrowStoreMode(store_mode)) { |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3513 | // Grow the array by a single element if possible. |
| 3514 | __ bind(&grow); |
| 3515 | |
| 3516 | // Make sure the array is only growing by a single element, anything else |
| 3517 | // must be handled by the runtime. |
| 3518 | __ Branch(&miss_force_generic, ne, key_reg, Operand(scratch)); |
| 3519 | |
| 3520 | // Check for the empty array, and preallocate a small backing store if |
| 3521 | // possible. |
| 3522 | __ lw(length_reg, |
| 3523 | FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3524 | __ lw(elements_reg, |
| 3525 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3526 | __ LoadRoot(at, Heap::kEmptyFixedArrayRootIndex); |
| 3527 | __ Branch(&check_capacity, ne, elements_reg, Operand(at)); |
| 3528 | |
| 3529 | int size = FixedArray::SizeFor(JSArray::kPreallocatedArrayElements); |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 3530 | __ Allocate(size, elements_reg, scratch, scratch2, &slow, TAG_OBJECT); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3531 | |
| 3532 | __ LoadRoot(scratch, Heap::kFixedArrayMapRootIndex); |
| 3533 | __ sw(scratch, FieldMemOperand(elements_reg, JSObject::kMapOffset)); |
| 3534 | __ li(scratch, Operand(Smi::FromInt(JSArray::kPreallocatedArrayElements))); |
| 3535 | __ sw(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 3536 | __ LoadRoot(scratch, Heap::kTheHoleValueRootIndex); |
| 3537 | for (int i = 1; i < JSArray::kPreallocatedArrayElements; ++i) { |
| 3538 | __ sw(scratch, FieldMemOperand(elements_reg, FixedArray::SizeFor(i))); |
| 3539 | } |
| 3540 | |
| 3541 | // Store the element at index zero. |
| 3542 | __ sw(value_reg, FieldMemOperand(elements_reg, FixedArray::SizeFor(0))); |
| 3543 | |
| 3544 | // Install the new backing store in the JSArray. |
| 3545 | __ sw(elements_reg, |
| 3546 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3547 | __ RecordWriteField(receiver_reg, JSObject::kElementsOffset, elements_reg, |
| 3548 | scratch, kRAHasNotBeenSaved, kDontSaveFPRegs, |
| 3549 | EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
| 3550 | |
| 3551 | // Increment the length of the array. |
| 3552 | __ li(length_reg, Operand(Smi::FromInt(1))); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 3553 | __ Ret(USE_DELAY_SLOT); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3554 | __ sw(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3555 | |
| 3556 | __ bind(&check_capacity); |
| 3557 | // Check for cow elements, in general they are not handled by this stub |
| 3558 | __ CheckMap(elements_reg, |
| 3559 | scratch, |
| 3560 | Heap::kFixedCOWArrayMapRootIndex, |
| 3561 | &miss_force_generic, |
| 3562 | DONT_DO_SMI_CHECK); |
| 3563 | |
| 3564 | __ lw(scratch, FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 3565 | __ Branch(&slow, hs, length_reg, Operand(scratch)); |
| 3566 | |
| 3567 | // Grow the array and finish the store. |
| 3568 | __ Addu(length_reg, length_reg, Operand(Smi::FromInt(1))); |
| 3569 | __ sw(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3570 | __ jmp(&finish_store); |
| 3571 | |
| 3572 | __ bind(&slow); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3573 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3574 | } |
vegorov@chromium.org | 0a4e901 | 2011-01-24 12:33:13 +0000 | [diff] [blame] | 3575 | } |
| 3576 | |
| 3577 | |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3578 | void KeyedStoreStubCompiler::GenerateStoreFastDoubleElement( |
| 3579 | MacroAssembler* masm, |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3580 | bool is_js_array, |
ulan@chromium.org | 750145a | 2013-03-07 15:14:13 +0000 | [diff] [blame] | 3581 | KeyedAccessStoreMode store_mode) { |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3582 | // ----------- S t a t e ------------- |
| 3583 | // -- a0 : value |
| 3584 | // -- a1 : key |
| 3585 | // -- a2 : receiver |
| 3586 | // -- ra : return address |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3587 | // -- a3 : scratch (elements backing store) |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3588 | // -- t0 : scratch (elements_reg) |
| 3589 | // -- t1 : scratch (mantissa_reg) |
| 3590 | // -- t2 : scratch (exponent_reg) |
| 3591 | // -- t3 : scratch4 |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3592 | // -- t4 : scratch |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3593 | // ----------------------------------- |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3594 | Label miss_force_generic, transition_elements_kind, grow, slow; |
| 3595 | Label finish_store, check_capacity; |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3596 | |
| 3597 | Register value_reg = a0; |
| 3598 | Register key_reg = a1; |
| 3599 | Register receiver_reg = a2; |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3600 | Register elements_reg = a3; |
| 3601 | Register scratch1 = t0; |
| 3602 | Register scratch2 = t1; |
| 3603 | Register scratch3 = t2; |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3604 | Register scratch4 = t3; |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3605 | Register scratch5 = t4; |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3606 | Register length_reg = t3; |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3607 | |
| 3608 | // This stub is meant to be tail-jumped to, the receiver must already |
| 3609 | // have been verified by the caller to not be a smi. |
erik.corry@gmail.com | ed49e96 | 2012-04-17 11:57:53 +0000 | [diff] [blame] | 3610 | |
| 3611 | // Check that the key is a smi or a heap number convertible to a smi. |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3612 | GenerateSmiKeyCheck(masm, key_reg, t0, t1, f2, f4, &miss_force_generic); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3613 | |
| 3614 | __ lw(elements_reg, |
| 3615 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3616 | |
| 3617 | // Check that the key is within bounds. |
| 3618 | if (is_js_array) { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3619 | __ lw(scratch1, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3620 | } else { |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3621 | __ lw(scratch1, |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3622 | FieldMemOperand(elements_reg, FixedArray::kLengthOffset)); |
| 3623 | } |
| 3624 | // Compare smis, unsigned compare catches both negative and out-of-bound |
| 3625 | // indexes. |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3626 | if (IsGrowStoreMode(store_mode)) { |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3627 | __ Branch(&grow, hs, key_reg, Operand(scratch1)); |
| 3628 | } else { |
| 3629 | __ Branch(&miss_force_generic, hs, key_reg, Operand(scratch1)); |
| 3630 | } |
| 3631 | |
| 3632 | __ bind(&finish_store); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3633 | |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3634 | __ StoreNumberToDoubleElements(value_reg, |
| 3635 | key_reg, |
rossberg@chromium.org | 89e18f5 | 2012-10-22 13:09:53 +0000 | [diff] [blame] | 3636 | // All registers after this are overwritten. |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3637 | elements_reg, |
| 3638 | scratch1, |
| 3639 | scratch2, |
| 3640 | scratch3, |
| 3641 | scratch4, |
| 3642 | &transition_elements_kind); |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3643 | |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 3644 | __ Ret(USE_DELAY_SLOT); |
| 3645 | __ mov(v0, value_reg); // In delay slot. |
rossberg@chromium.org | 717967f | 2011-07-20 13:44:42 +0000 | [diff] [blame] | 3646 | |
| 3647 | // Handle store cache miss, replacing the ic with the generic stub. |
| 3648 | __ bind(&miss_force_generic); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3649 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_MissForceGeneric); |
rossberg@chromium.org | b4b2aa6 | 2011-10-13 09:49:59 +0000 | [diff] [blame] | 3650 | |
| 3651 | __ bind(&transition_elements_kind); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3652 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Miss); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3653 | |
svenpanne@chromium.org | 9faefa4 | 2013-03-08 13:13:16 +0000 | [diff] [blame] | 3654 | if (is_js_array && IsGrowStoreMode(store_mode)) { |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3655 | // Grow the array by a single element if possible. |
| 3656 | __ bind(&grow); |
| 3657 | |
| 3658 | // Make sure the array is only growing by a single element, anything else |
| 3659 | // must be handled by the runtime. |
| 3660 | __ Branch(&miss_force_generic, ne, key_reg, Operand(scratch1)); |
| 3661 | |
| 3662 | // Transition on values that can't be stored in a FixedDoubleArray. |
| 3663 | Label value_is_smi; |
| 3664 | __ JumpIfSmi(value_reg, &value_is_smi); |
| 3665 | __ lw(scratch1, FieldMemOperand(value_reg, HeapObject::kMapOffset)); |
| 3666 | __ LoadRoot(at, Heap::kHeapNumberMapRootIndex); |
| 3667 | __ Branch(&transition_elements_kind, ne, scratch1, Operand(at)); |
| 3668 | __ bind(&value_is_smi); |
| 3669 | |
| 3670 | // Check for the empty array, and preallocate a small backing store if |
| 3671 | // possible. |
| 3672 | __ lw(length_reg, |
| 3673 | FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3674 | __ lw(elements_reg, |
| 3675 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3676 | __ LoadRoot(at, Heap::kEmptyFixedArrayRootIndex); |
| 3677 | __ Branch(&check_capacity, ne, elements_reg, Operand(at)); |
| 3678 | |
| 3679 | int size = FixedDoubleArray::SizeFor(JSArray::kPreallocatedArrayElements); |
jkummerow@chromium.org | 4c54a2a | 2013-03-19 17:51:30 +0000 | [diff] [blame] | 3680 | __ Allocate(size, elements_reg, scratch1, scratch2, &slow, TAG_OBJECT); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3681 | |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3682 | // Initialize the new FixedDoubleArray. |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3683 | __ LoadRoot(scratch1, Heap::kFixedDoubleArrayMapRootIndex); |
| 3684 | __ sw(scratch1, FieldMemOperand(elements_reg, JSObject::kMapOffset)); |
| 3685 | __ li(scratch1, Operand(Smi::FromInt(JSArray::kPreallocatedArrayElements))); |
| 3686 | __ sw(scratch1, |
| 3687 | FieldMemOperand(elements_reg, FixedDoubleArray::kLengthOffset)); |
| 3688 | |
svenpanne@chromium.org | 83130cf | 2012-11-30 10:13:25 +0000 | [diff] [blame] | 3689 | __ mov(scratch1, elements_reg); |
| 3690 | __ StoreNumberToDoubleElements(value_reg, |
| 3691 | key_reg, |
| 3692 | // All registers after this are overwritten. |
| 3693 | scratch1, |
| 3694 | scratch2, |
| 3695 | scratch3, |
| 3696 | scratch4, |
| 3697 | scratch5, |
| 3698 | &transition_elements_kind); |
| 3699 | |
| 3700 | __ li(scratch1, Operand(kHoleNanLower32)); |
| 3701 | __ li(scratch2, Operand(kHoleNanUpper32)); |
| 3702 | for (int i = 1; i < JSArray::kPreallocatedArrayElements; i++) { |
| 3703 | int offset = FixedDoubleArray::OffsetOfElementAt(i); |
| 3704 | __ sw(scratch1, FieldMemOperand(elements_reg, offset)); |
| 3705 | __ sw(scratch2, FieldMemOperand(elements_reg, offset + kPointerSize)); |
| 3706 | } |
| 3707 | |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3708 | // Install the new backing store in the JSArray. |
| 3709 | __ sw(elements_reg, |
| 3710 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
| 3711 | __ RecordWriteField(receiver_reg, JSObject::kElementsOffset, elements_reg, |
| 3712 | scratch1, kRAHasNotBeenSaved, kDontSaveFPRegs, |
| 3713 | EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
| 3714 | |
| 3715 | // Increment the length of the array. |
| 3716 | __ li(length_reg, Operand(Smi::FromInt(1))); |
| 3717 | __ sw(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
verwaest@chromium.org | 8a00e82 | 2013-06-10 15:11:22 +0000 | [diff] [blame] | 3718 | __ Ret(USE_DELAY_SLOT); |
danno@chromium.org | 00379b8 | 2012-05-04 09:16:29 +0000 | [diff] [blame] | 3719 | __ lw(elements_reg, |
| 3720 | FieldMemOperand(receiver_reg, JSObject::kElementsOffset)); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3721 | |
| 3722 | __ bind(&check_capacity); |
| 3723 | // Make sure that the backing store can hold additional elements. |
| 3724 | __ lw(scratch1, |
| 3725 | FieldMemOperand(elements_reg, FixedDoubleArray::kLengthOffset)); |
| 3726 | __ Branch(&slow, hs, length_reg, Operand(scratch1)); |
| 3727 | |
| 3728 | // Grow the array and finish the store. |
| 3729 | __ Addu(length_reg, length_reg, Operand(Smi::FromInt(1))); |
| 3730 | __ sw(length_reg, FieldMemOperand(receiver_reg, JSArray::kLengthOffset)); |
| 3731 | __ jmp(&finish_store); |
| 3732 | |
| 3733 | __ bind(&slow); |
svenpanne@chromium.org | 2bda543 | 2013-03-15 12:39:50 +0000 | [diff] [blame] | 3734 | TailCallBuiltin(masm, Builtins::kKeyedStoreIC_Slow); |
yangguo@chromium.org | 5645471 | 2012-02-16 15:33:53 +0000 | [diff] [blame] | 3735 | } |
svenpanne@chromium.org | 84bcc55 | 2011-07-18 09:50:57 +0000 | [diff] [blame] | 3736 | } |
| 3737 | |
| 3738 | |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 3739 | #undef __ |
| 3740 | |
| 3741 | } } // namespace v8::internal |
| 3742 | |
erik.corry@gmail.com | 9dfbea4 | 2010-05-21 12:58:28 +0000 | [diff] [blame] | 3743 | #endif // V8_TARGET_ARCH_MIPS |